GY6 50, 4-Stroke, (139QMB 1P39QMB)

This horizontal single cylinder, four stroke, forced air cooled engine has a CTV automatic transmission and is used on many scooters, ATVs, buggies, go karts and mopeds.  This engine has a displacement of 49.6cc, a bore size of 39mm and a stroke of 41.5mm .  We have parts for the GY6 139QMB, QMB139, 1P39QMB, 50QTB  50cc  4T including performance parts to increase size, power and performance of these engines. 

This common engine is found in these imported brands and models:  Avanti, Baja Powersports, Baja Primo, Baja SC50, Baja Sun City, Baotian 50QT-11, Baotian 50QT-9, Baotian BT49QT-2, Baotian BT49QT-7, Baotian BT50QT-11, Baotian BT50QT-9, Diamo, Dotera 50QT-11, EVO 50cc, Fly, Fusion, Geely, Jalon JL50QT-15, Jalon JL50QT-16, Jalon JL50QT-18, Jalon JL50QT-21, Jalon JL50QT-21 Falcon, Jonway, Kymco, Maui, Meitian (Mei-Tian), Pantera Freedom, Peirspeed Bolero (50cc), Q Link, Roketa, Roketa Bahama, Schwinn, Shanghai Shenke, Sicily, Sinski XSJ50QT-6, Sinski XSJ50QT-B, Strada, Sunl SL50QT-16, Sunl SL50QT-18, Sunl SL50QT-2, Sunl SL50QT-3, Taishan Commuter, Taishan Sport, Tank, Verucci, Verucci VC50TS-3M, Zhong Hu 50cc, Znen, Zongshen, Zongshen Metro 50cc and many more...

We also carry parts for the following imports from China, Japan, Korea  and  Taiwan:  Baotian Ecobike, Benzhou City Star 50, Benzhou YY50QT, Jiangsu Xinling, Jinlun JL50QT, Karcher KM 50, Kreidler Flory 50, Kymco Agility, Kymco Agility 50, Kymco Agility MMC 50, Kymco Filly 50, Kymco New Dink 50, Kymco Nexxon 50, Kymco People 50, Kymco Super 8 50, Kymco Vitality 50, Kymco Yager, Kymco Yager GT, MSK Ecobike 50, PEUGEOT V-Click, Qingqi QM50QT-6A, REX Capriolo 50, REX Off Limit, REX RS 450, REX RS 500, Rieju Paseo 50, Rieju Toreo 50, Sachs 49er, Sachs Bee, Sanili TS50QT-4, Sanili TS50QT-4, Sprint 50cc, ZhongYu 50 QT-5, ZhongYu 50QT-7, ZhongYu ZY50QT, Zongshen Metro 50, Zongshen ZS50QT-4 and many others....

 

(Click on the parts for additional pictures)

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669-18-30 Belt GY6 50 139QMB Short Case 8 bolt cover 100-1001-1004
$9.35 $9.35 Add to Cart
5 out of 5 Stars!

This is a standard replacement belt for the GY6 50cc 139QMB 4-stroke short-case engine. This belt is found on the is used on the Baja, JMstar, Jonway, Lance, NST, Peace, Roketa, Sunl, Tank, TNG, Vento, VIP and many others. Note: Scooters with a 10" rear wheel usually have a short case engine.

729-17.5-30 Belt Gates Powerlink GY6 50 139QMB Long Case 10 bolt cover 100-1001-1007
$11.69 $11.69 Add to Cart
5 out of 5 Stars!

This is a High Quality Gates Powerlink Belt for the GY6 50cc 139QMB long case engine. This belt fits Baja, JMstar, Jonway, Lance, NST, Peace, Roketa, Sunl, Tank, TNG, Vento, VIP and many others. Note: Scooters with a long case usually have a 12" - 16" rear wheel. Save time and money, go for quality every time.

729-17.7-30 Belt GY6 50 139QMB Long Case 10 bolt cover 100-1001-1006
$8.39 $8.39 Add to Cart

This is the standard replacement belt for the GY6 50cc 139QMB 4-stroke long case engine. These are used on Baja, JMstar, Jonway, Lance, NST, Peace, Roketa, Sunl, Tank, TNG, Vento, VIP and many others. Note: Scooters with a long case usually have a 12" - 16" rear wheel.

891-17-30 Belt MotoMojo Vento Triton 100-1001-1022
$19.99 $19.99 Add to Cart

This 891-17-30 Drive Belt fits the unusual QJ Chinese engine long case found in Vento Triton, MotoMojo and others. These are a longer belt than the standard 669 or 729 belt used on the 139qmb GY6 50cc engine.

Air Filter 35mm 1 3/8" Straight Performance High Flow Pod Dual Layer 400-1015-4025
$18.99 $18.99 Add to Cart

This is a very high quality Dual Layer 35mm, Straight, small profile Performance Air Filter for high air flow that clamps on to your carburetor to ensure a tight clearance fit. This has a quality urethane flange and clamp. Fits the 49cc to 125cc Honda style Horizontal motors, 35mm diameter intake.

Air Filter 38mm 1 1/2" 30 Degree High Flow Pod Dual Layer 101-1015-2001
$14.99 $14.99 Add to Cart

This is a very high quality Dual Layer 38mm, 30 degree, small profile Performance Air Filter for high air flow that clamps on to your carburetor to ensure a tight clearance fit. This has a quality urethane flange and clamp. This filter Baja, JMstar, Jonway, Lance, NST, Peace, Roketa, Sunl, Tank, TNG, Tomos Nitro 50,  Vento, VIP and many others.  This will fit just about any scooter, quad, moped, buggy, ATV, dirt bike, etc.

Air Filter 38mm 1 1/2" 30 degree High Flow Pod Dual Layer 101-1015-2002
$14.99 $14.99 Add to Cart

This is a very high quality Dual Layer 38mm, small profile Performance Air Filter for high air flow that clamps on to your carburetor to ensure a tight clearance fit. This has a quality urethane flange and clamp. This filter Baja, JMstar, Jonway, Lance, NST, Peace, Roketa, Sunl, Tank, TNG, Tomos Nitro 50,  Vento, VIP and many others.  This will fit just about any scooter, quad, moped, buggy, ATV, dirt bike, etc.

Air Filter 38mm 1 1/2" 30 Degree Performance Chrome Cone 400-1015-4023
$11.99 $11.99 Add to Cart

This is a very high quality Air Filter, 38mm, 4-Stroke HP Air Filter, 30 degree, Chrome Cone (approx 90mm long) for the 139QMB GY6-50 and PZ-22 carburetor.

Air Filter 38mm 1 1/2" Straight High Flow Pod Dual Layer 101-1015-2003
$14.99 $14.99 Add to Cart

This is a very high quality Dual Layer 38mm, small profile Performance Air Filter for high air flow that clamps on to your carburetor to ensure a tight clearance fit. This has a quality urethane flange and clamp. This filter Baja, JMstar, Jonway, Lance, NST, Peace, Roketa, Sunl, Tank, TNG, Tomos Nitro 50,  Vento, VIP and many others.  This will fit just about any scooter, quad, moped, buggy, ATV, dirt bike, etc.

Air Filter 38mm 1 1/2" Straight Performance Chrome Cone 400-1015-4017
$11.99 $11.99 Add to Cart

This is a very high quality Air Filter, 38mm, 4-Stroke HP Air Filter, Straight, Chrome Cone (approx 80mm long) for the 139QMB GY6-50 and PZ-22 carburetor.

Air Filter 38mm 1 1/2" Straight Performance Shielded Chrome Cone 400-1015-4011
$12.99 $12.99 Add to Cart

This is a very high quality Air Filter, 38mm, 4-Stroke HP Air Filter, Straight, Shielded Chrome Cone (approx 70mm long) for the 139QMB GY6-50 and PZ-22 carburetor.

Airbox 4 Stroke GY6 50 139QMB 100-1015-1000
$26.59 $26.59 Add to Cart

This is a Complete OEM Replacement Air Box Assembly for the 4 stroke GY6 50cc 139QMB scooter, ATV, quad and buggie engine.  This fits Baja, JMstar, Jonway, Lance, NST, Peace, Roketa, Sunl, Tank, TNG, Vento, VIP and many others.

Bearing 6004Z 6004-2RS 20mm x 42mm x 12mm Sealed Chrome Steel B-1-1000-2007
$4.99 $4.99 Add to Cart

6004Z 6004-2RS, Bearing, double sealed ball bearing, 20mmx42mmx12mm, GY6-125/150 152QMi 152QMJ 157QMI 157QMJ crankcase, GY6-50 139QMB gear box

Bearing 6201 12mm x 32mm x 10mm Chrome Steel B-1-1000-2009
$4.99 $4.99 Add to Cart

6201 Bearing, Open, Deep Groove Ball Bearing, Chrome Steel, 12mmx32mmx10mm, GY6-50 139QMB, Gear Box (2),  Crankcase (1)

Bearing 6201-2RS 12mm x 32mm x 10mm Sealed Pre-lubricated 139QMB B-1-1000-2011
$4.99 $4.99 Add to Cart

6201-2RS Bearing, Rubber Sided, Deep Groove Ball Bearing, Self-lubricating, 12mm x 32mm x 10mm, (Equivalents: 201PP, 6201.2RSR, 201SZZ, 6201DDU, 6201LLU and 6201-2RS1), Crankcase bearing, 4-stroke, 139QMB 50cc engine.

Bearing 6203 17mm x 40mm x 12mm Chrome Steel 1PE40QMB 139QMB 157QMJ B-1-1000-2014
$4.99 $4.99 Add to Cart

6203 Bearing, Open, Deep Groove Radial Ball Bearing, Chrome Steel, 17mm x 40mm x 12mm, 1PE40QMB 50 Rear Transmission, GY6-50 139QMB crankcase, GY6-125/150 157QMJ gear box.

Bearing 6301 12mm x 37mm x 12mm Chrome Steel 139QMB 157QMJ CF250 172MM  B-1-1000-2025
$4.99 $4.99 Add to Cart

6301 Bearing, Open, Deep Groove Radial Ball Bearing, Chrome Steel, 12mm x 37mm x 12mm, GY6-50 139QMB, 157QMJ GY6-125/150 crankcase, CF250 172MM left crankcase (1), and others

Bearing 6303X3-2 17mm x 42mm x 12mm Chrome Steel 139QMB B-1-1000-2027
$4.99 $4.99 Add to Cart

6303X3-2 Bearing, Open Radial Ball Bearing, Deep groove, Chrome Steel, 17mmx42mmx12mm,  GY6-50 4-stroke 139QMB engines

Bearing 6303X3-2/P6 17mm x 42mm x 12mm Chrome Steel 139QMB B-1-1000-2028
$4.99 $4.99 Add to Cart

6303X3-2/P6 Bearing,Open Deep Groove Radial Ball Bearing, Chrome Steel, 17mm x 42mm x 12mm,  GY6-50 4-stroke 139QMB gear box, Baja Retro (RT50-R), Baja Sun City (SC50 / SC50-P), Baotian BT50QT-11 Retro, Panterra Fusion & Retro Transmission

Bearing 6901-2RS 12mm x 24mm x 6mm Self-lubricating Chrome Steel 139QMB CF150 1P58MJ 157MJ B-1-1000-2036
$6.99 $6.99 Add to Cart

6901-2RS Bearing, Double Shielded Rubber Sealed,  Deep Groove Ball Bearing, Self-lubricating, Chrome Steel, 12mm x 24mm x 6mm, Equivalents: 6901 LLU, 6901-2RS1 & 6901-2RZ, fits GY6-50 139QMB, 1P58MJ, 157MJ, CF150

Belt Cover Gasket GY6 50 139QMB 15.75" Left Short Case 8 bolt cover 100-1001-2100
$6.99 $6.99 Add to Cart

Belt Cover Gasket for the 8 bolt cover on the GY6-50 Type A, Left CVT Cover Gasket, 139QMB. •Overall Length: 15.75 inches •Widest Point: 7 inches

Belt Cover Long Case 10 bolt Assembled Hot Swap GY6 50 139QMB 100-1001-2004
$73.99 $73.99 Add to Cart

This is a complete and fully assembled Hot Swap Belt Cover for the GY6 50cc 139qmb engine. This fully assembled case includes the kick-start lever, and shaft already installed. This unit cost far less than the sum of the parts if bought individually...plus it's easier. There are two sizes for these covers. Please read the Mechanics Note below to determine which one you need.

Mechanics Note:
These covers come in both short case and long case. The short case has 8 installation bolts and the long case has 10 bolts. The short case uses the 669 belt and the long case uses the 729 belt.

Brake Cable Clamp GY6 139QMB 157QMJ B-200-1001-3104
$4.99 $4.99 Add to Cart

Clamp, Brake Cable, GY6-50, GY6-125/150 left side belt cover

Brake Light Switch Small End GY6 Honda Scooter Moped ATV B-1-1002-2002
$7.95 $7.95 Add to Cart

This is the smaller... most common brake switch found on the GY6 139QMB. (Measures approx. 11", 279mm) Brands and models include the Baja, JMstar, Jonway, Lance, NST, Peace, Roketa, Sunl, Tank, TNG, Vento, VIP, and many others.


Mechanics Note: The brake switch on a scooter is not just to illuminate the brake light; it is also a safety switch to start the engine. If nothing happens when you push the start button, think about getting one or both of these. Remember, you have two brake switches

Brake Switch with Spring Rear Foot Activated B-1-1002-2005
$9.99 $9.99 Add to Cart

Rear Brake Stop Switch and Spring for foot activated rear brake on many scooters and motorcycles.

Bulb Headlight B35 35w/35w FSL Scooter Moped ATV 1-1023-0003
$5.89 $5.89 Add to Cart

This 35w/35w headlight is a common bulb for many Handsome-boy scooters as well as ATVs. This 35w bulb is brighter and can often replace the 18w bulb. We also stock the 18w headlight if you prefer, as well.

  • BA20D
  • 35 Watt High Beam
  • 35 Watt Low Beam
  • 12 Volt
Bulb Headlight Halogen B35 35w/35w FSL Scooter Moped ATV 1-1023-0003-H
$5.89 $5.89 Add to Cart

This Halogen 35w/35w headlight is a common bulb for many Handsome-boy scooters as well as ATVs. This 35w bulb is brighter and can often replace the 18w bulb. We also stock the 18w headlight if you prefer, as well.

  • BA20D
  • 35 Watt High Beam
  • 35 Watt Low Beam
  • 12 Volt
Camshaft Retaining Frame and Rocker Arm Assembly, 4 Stroke, GY6 50,  139QMB 100-1004-2002
$13.49 $13.49 Add to Cart

This is a high quality complete Camshaft Retaining Frame and Rocker Arm Assembly for the GY6 50cc 139QMB 4-stroke engine.

Camshaft, OEM for 4 Stroke GY6 50 139QMB 100-1004-1005
$10.69 $10.69 Add to Cart

This is a good quality standard replacement camshaft assembly for the 4 stroke GY6 50cc 139QMB engine. Performance cams are also available under our Performance Parts Section.

Carb Drain Tube Clamp GY6 50 150 139QMB 157QMJ B-200-1001-3103
$4.99 $4.99 Add to Cart

Clamp, Carb Drain Tube, GY6-50, GY6-125/150 left side belt cover

Carburetor 19mm CVK w/ Accelerator Pump GY6 50 139QMB 101-1005-1015
$59.95 $59.95 Add to Cart

This is a high quality 19mm CVK replacement carburetor for all GY6 4-stroke 139QMB 49/50cc Chinese engines. This carburetor is fitted with a #85 main jet. This is better than stock and comes with a larger venturi, an accelerator pump, and quality construction. This carburetor is used on Baja, JMstar, Jonway, Lance, NST, Peace, Roketa, Sunl, Tank, TNG, Vento, VIP and many others.

Mechanic Note: This better than stock carburetor comes with an accelerator pump, which will frequently eliminate hesitation when you open her up. The carburetor has an electric choke (2-pin male plug), fuel and drain lines, fuel filter with pre-tuned jetting for most applications.

  • Intake (outer): 28mm
  • Intake (Inner): 19mm
  • Air Filter Mounting: 40mm
  • Choke: Electric
  • Accelerator Pump
Carburetor Accelerator Pump GY6 50 139QMB B-100-1005-2013
$16.99 $16.99 Add to Cart

Accelerator Pump for GY6-50cc 4-stroke 139QMB engines.  This fits the QMB139 50cc/49cc Baja, JMstar, Jonway, Lance, NST, Peace, Roketa, Sunl, Tank, TNG, Tomos Nitro 50,  Vento, VIP and many others.

Carburetor Choke Enrichener NK200.05 Electric GY6 Scooter Moped ATV 1-1005-5001
$9.99 $9.99 Add to Cart

This is the carburetor choke enrichener for the GY6 50, 125, and 150cc Chinese 4-stroke engine. (139QMB, 157QMI, 157QMJ) It also fits many 2-stroke Chinese engines as well. It is an easy one screw installation. This choke is found on the Baja, JMstar, Jonway, Lance, NST, Peace, Roketa, Sunl, Tank, TNG, Vento, VIP and many others.  Referred to as NK200.05

Mechanics Note: This is usually the problem when the engine is difficult to start, won't stay running or runs fuel rich. This is an inexpensive and easy repair.

Carburetor Diaphragm 4 Stroke GY6 50 139QMB 100-1005-4001
$5.29 $5.29 Add to Cart

This is a new Carburetor Diaphragm (2", 52.25mm diameter, Piston 11/16", 17.89mm)  for the 4 stroke, GY6 50cc 139QMB engine.

Mechanics Note: If the engine is sluggish or won't allow you to run her up much past half on the throttle, and you are having difficulty getting her to full speed, look in the carburetor with the intake boot off, and see if the diaphragm is going all the way up. If it fails to do so, it is torn or leaking and you have found your problem.

Carburetor Main Jet #75 Mikuni GY6 50 139QMB B-100-1005-3001
$4.99 $4.99 Add to Cart

This is a Carburetor Main Jet  (M4 x .7, length 7.2mm)  for the GY6 50cc, 4-Stroke engine. These come in various sizes depending on your application. #75 is standard replacement with stock air box. , #85, and the #88 require a Performance Air Filter system and the #95 requires the Performance Air Filter and Performance Exhaust System to get top performance. Installing a Performance Air Filter and Performance Exhaust System will give you the edge you're looking for.

Mechanics Note: If you increase the size of your stock carb jet you will want to improve your air flow both in and out of the engine. For smaller upgrades replace the stock air filter with a Performance Air Filter for this engine. If you upgrade beyond small adjustments you will want to install a Performance Exhaust System to handle the increased combustion and minimize back flow issues.

Altitude can play an issue in scooter performance. When you are dealing with elevation you will want to rejet to prevent your engine from siezing and requiring a rebuild. You will loose about 3% in power for every 1000' in elevation. At 4000' feet you will have lost about 12% of your power output. You will want to go down one (1) jet size for every 1750' to 2000' you go up in elevation. When the air is colder it requires bigger jets because cold air is more dense. If it is 50 degrees colder you would increase your jet size at least one step up. If you don't, your engine may sieze on you

Carburetor Main Jet #80 Mikuni GY6 50 139QMB B-100-1005-3026
$4.99 $4.99 Add to Cart

This is a Carburetor Main Jet  (M4 x .7, length 7.2mm) for the GY6 50cc, 4-Stroke engine. These come in various sizes depending on your application. #75 is standard replacement with stock air box. , #85, and the #88 require a Performance Air Filter system and the #95 requires the Performance Air Filter and Performance Exhaust System to get top performance. Installing a Performance Air Filter and Performance Exhaust System will give you the edge you're looking for.

Carburetor Main Jet #85 Mikuni GY6 50 139QMB B-100-1005-3002
$4.99 $4.99 Add to Cart

This is a Carburetor Main Jet (M4 x .7, length 7.2mm) for the GY6 50cc, 4-Stroke engine. These come in various sizes depending on your application. #75 is standard replacement with stock air box. , #85, and the #88 require a Performance Air Filter system and the #95 requires the Performance Air Filter and Performance Exhaust System to get top performance. Installing a Performance Air Filter and Performance Exhaust System will give you the edge you're looking for.

Mechanics Note: If you increase the size of your stock carb jet you will want to improve your air flow both in and out of the engine. For smaller upgrades replace the stock air filter with a Performance Air Filter for this engine. If you upgrade beyond small adjustments you will want to install a Performance Exhaust System to handle the increased combustion and minimize back flow issues.

Altitude can play an issue in scooter performance. When you are dealing with elevation you will want to rejet to prevent your engine from siezing and requiring a rebuild. You will loose about 3% in power for every 1000' in elevation. At 4000' feet you will have lost about 12% of your power output. You will want to go down one (1) jet size for every 1750' to 2000' you go up in elevation. When the air is colder it requires bigger jets because cold air is more dense. If it is 50 degrees colder you would increase your jet size at least one step up. If you don't, your engine may sieze on you.

Carburetor Main Jet #88 Mikuni GY6 50 139QMB B-100-1005-3008
$4.99 $4.99 Add to Cart

This is a Carburetor Main Jet  (M4 x .7, length 7.2mm) for the GY6 50cc, 4-Stroke engine. These come in various sizes depending on your application. #75 is standard replacement with stock air box. , #85, and the #88 require a Performance Air Filter system and the #95 requires the Performance Air Filter and Performance Exhaust System to get top performance. Installing a Performance Air Filter and Performance Exhaust System will give you the edge you're looking for.

Mechanics Note: If you increase the size of your stock carb jet you will want to improve your air flow both in and out of the engine. For smaller upgrades replace the stock air filter with a Performance Air Filter for this engine. If you upgrade beyond small adjustments you will want to install a Performance Exhaust System to handle the increased combustion and minimize back flow issues.

Altitude can play an issue in scooter performance. When you are dealing with elevation you will want to rejet to prevent your engine from siezing and requiring a rebuild. You will loose about 3% in power for every 1000' in elevation. At 4000' feet you will have lost about 12% of your power output. You will want to go down one (1) jet size for every 1750' to 2000' you go up in elevation. When the air is colder it requires bigger jets because cold air is more dense. If it is 50 degrees colder you would increase your jet size at least one step up. If you don't, your engine may sieze on you

Carburetor Main Jet #90 Mikuni GY6 50 139QMB B-100-1005-3009
$4.99 $4.99 Add to Cart

This is a Carburetor Main Jet  (M4 x .7, length 7.2mm) for the GY6 50cc, 4-Stroke engine. These come in various sizes depending on your application. #75 is standard replacement with stock air box. , #85, and the #88 require a Performance Air Filter system and the #95 requires the Performance Air Filter and Performance Exhaust System to get top performance. Installing a Performance Air Filter and Performance Exhaust System will give you the edge you're looking for.

Carburetor Main Jet #95 Mikuni GY6 50 139QMB B-100-1005-3003
$4.99 $4.99 Add to Cart

This is a Carburetor Main Jet  (M4 x .7, length 7.2mm) for the GY6 50cc, 4-Stroke engine. These come in various sizes depending on your application. #75 is standard replacement with stock air box. , #85, and the #88 require a Performance Air Filter system and the #95 requires the Performance Air Filter and Performance Exhaust System to get top performance. Installing a Performance Air Filter and Performance Exhaust System will give you the edge you're looking for.

Mechanics Note: If you increase the size of your stock carb jet you will want to improve your air flow both in and out of the engine. For smaller upgrades replace the stock air filter with a Performance Air Filter for this engine. If you upgrade beyond small adjustments you will want to install a Performance Exhaust System to handle the increased combustion and minimize back flow issues.

Altitude can play an issue in scooter performance. When you are dealing with elevation you will want to rejet to prevent your engine from siezing and requiring a rebuild. You will loose about 3% in power for every 1000' in elevation. At 4000' feet you will have lost about 12% of your power output. You will want to go down one (1) jet size for every 1750' to 2000' you go up in elevation. When the air is colder it requires bigger jets because cold air is more dense. If it is 50 degrees colder you would increase your jet size at least one step up. If you don't, your engine may sieze on you

Carburetor Pilot Idle Jet #34 Mikuni OEM GY6 50 139QMB B-100-1005-3105
$4.99 $4.99 Add to Cart

This is a standard carburetor pilot idle jet #34 (M6) for the GY6, 50cc 4-Stroke engine. .

Mechanics Note: This small jet can create many problems. If the bike is sputtering when coming off idle or will not run after warm up, this may be the problem. Also if the bike has not been used much or has been sitting for a long time and will not stay running, this little jet may cure your problems.

Carburetor Rebuild Kit 4 Stroke GY6 50 139QMB 100-1005-2001
$11.99 $11.99 Add to Cart

This is a complete Carburetor Rebuild Kit for the 4 stroke GY6 50 139QMB, 50cc engine. The kit includes the main jet, pilot idle jet, air screw, spring, seal, seat, float, float valve, float pin, gasket, needle and clips.  This kit fits carburetors in the Baja, JMstar, Jonway, Lance, NST, Peace, Roketa, Sunl, Tank, TNG, Vento, VIP and many others.

Carburetor Valve ACV GY6 50 139QMB B-100-1005-2014
$11.99 $11.99 Add to Cart

ACV Carburetor Valve for GY6 50cc 4-stroke 139QMB engines. This fits the QMB139 50cc/49cc, Baja, JMstar, Jonway, Lance, NST, Peace, Roketa, Sunl, Tank, TNG, Tomos Nitro 50,  Vento, VIP and many others.

Carburetor w/ Electric Choke 19mm CV GY6 50 139QMB 100-1005-1001
$39.99 $39.99 Add to Cart

This is a good quality 19mm CV replacement Carburetor, replaces the 18mm standard for all GY6 4-stroke 139QMB 49/50cc Chinese engines. This is better than stock and comes with a larger venturi, and quality construction. This carburetor is used on Baja, JMstar, Jonway, Lance, NST, Peace, Roketa, Sunl, Tank, TNG, Vento, VIP and many others.

  • Intake (outer): 28mm
  • Intake (Inner): 19mm
  • Air Filter Mounting: 40mm
  • Choke: Electric
CDI AC 6 Pin 4 Stroke GY6 1-1006-0011
$9.99 $9.99 Add to Cart

This is a 6-pin standard replacement AC fired CDI is for most GY6 Chinese engines. 139QMB, 157QMI, 157QMJ (This CDI has the 6-pin rounded receiver.) There is also a less common DC fired CDI availiable.  This CDI is found on the Baja, JMstar, Jonway, Lance, NST, Peace, Roketa, Sunl, Tank, TNG, Vento, VIP and many others....

Mechanics Note: According to the experts, there is only one true way to know whether you have an AC or DC system. First, be sure your battery is fully charged and your fuse is good. Second, turn the key on, but DO NOT start your engine.  Using this CDI pin configuration:

[ 1 2 ][ 5 ]
[ 3 4 ][ 6 ]

with a voltage tester and leaving everything hooked up normal, go in through the top, through the wires until you have contact, check the #6 pin to see if it has 12v present?  Your system is DC  if you have 12V.  If not voltage then it is an AC system. Your AC system can have over 50v AC while cranking.

CDI AC 6 pin Racing Non Rev GY6 Scooter Moped ATV 201-1006-0017
$9.89 $9.89 Add to Cart
5 out of 5 Stars!
  • This is a 6-pin AC Racing Performance CDI with an Unrestricted Rev Limit and an advanced timing curve for the GY6 50cc 125cc and 150cc engines. Engine applications include the 139QMB, 152QMI, 152QMJ, 157QMI, and 157QMJ.  These CDI's have no governor and eliminate that irritating rev-limiter which might be keeping your engine speed restricted
  • This CDI is found on the Baja, JMstar, Jonway, Lance, NST,Peace,Roketa, Sunl, Tank, TNG, Vento, VIP and many others. Compatibility, however, is based on matching wiring and connectors. Please ensure your make and model have the same connector and number of pins prior to ordering. This CDI has the rounded dual slot, 6-pin receiver and measures 2.5" x 1.5" x 1.5".
  • This high quality CDI is made tough and is durable on and off the track and will give your engine better acceleration and top end if your engine is in good running condition, including good compression. It is an inexpensive way to gain performance. Check our eBay store we have many different OEM and Racing Performance CDI's to choose from. We recommend taking a look at our high performance coils as well.

Mechanics Note: According to the experts, there is only one true way to know whether you have an AC or DC system. First, be sure your battery is fully charged and your fuse is good. Second, turn the key on, but DO NOT start your engine.  Using this CDI pin configuration:

[ 1 2 ][ 5 ]
[ 3 4 ][ 6 ]

with a voltage tester and leaving everything hooked up normal, go in through the top, through the wires until you have contact, check the #6 pin to see if it has 12v present?  Your system is DC  if you have 12V.  If not voltage then it is an AC system. Your AC system can have over 50v AC while cranking.

CDI DC 6 Pin Racing Non Rev GY6  50 -150 139QMB 157QMJ Scooter Moped ATV 201-1006-0012
$12.99 $12.99 Add to Cart
5 out of 5 Stars!
  • This is a 6-pin DC Racing Performance CDI with an Unrestricted Rev Limit and an advanced timing curve for the GY6 50cc 125cc and 150cc engines. Engine applications include the 139QMB, 139QMA  152QMI, 152QMJ, 157QMI, and 157QMJ.  These CDI's have no governor and eliminate that irritating rev-limiter which might be keeping your engine speed restricted. 
  • For this CDI your engine must have a 3-phase type generator and regulator/rectifier. This CDI has the rounded-style plug receiver. CDI Size: 3" x 1 5/8" x 15/16". 
  • This CDI is found on the Baja SC50 Sun City, Carter Brothers Interceptor GTR 250 with the SYM 250,  Diamo Velocity, Eton sport 50, JCL MP-150, Lance GSR 150, Schwinn, SYM sport 50, SYM VS125, Tomos Nitro 50, Vento Triton, VMOTO Monaco 125cc and other Korean, Chinese and Taiwanese scooters.and many others. Compatibility, however, is based on matching wiring and connectors. Please ensure your make and model have the same connector and number of pins prior to ordering.
  • Mechanics Note: According to the experts, there is only one true way to know whether you have an AC or DC system. First, be sure your battery is fully charged and your fuse is good. Second, turn the key on, but DO NOT start your engine.  Using this CDI pin configuration:

    [ 1 2 ][ 5 ]
    [ 3 4 ][ 6 ]

    with a voltage tester and leaving everything hooked up normal, go in through the top, through the wires until you have contact, check the #6 pin to see if it has 12v present?  Your system is DC  if you have 12V.  If not voltage then it is an AC system. Your AC system can have over 50v AC while cranking.


     

           

CDI DC High Performance Unlimited KYMCO Agility 50 125 KYMCO People 150 101-1006-0032
$28.99 $28.99 Add to Cart

This is a High Performance Non-Rev unlimited CDI for the KYMCO Agility 50cc and 125cc (2006-2011, 2012-2015 with this 6 pin 4 & 2 plug).  This CDI replaces KYMCO Part Number 30410-LBD6-E00.  This CDI is will also work on the KYMCO People 150 (2002-2011) , and KYMCO People 50 4 stroke (2006-2009) and KYMCO Sento 50 4 stroke (2009-2011).

Clutch Assembly GY6 50 139QMB 100-1007-2001
$39.99 $39.99 Add to Cart
5 out of 5 Stars!

This is a ready to install OEM complete Clutch Assembly for the 4 stroke GY6 50cc 139QMB Chinese scooter, moped, ATV and go-kart engines

  • Clutch
  • Pulley Sheaves
  • Housing Assembly 
  • Clutch Springs
  • Torque Spring

This clutch fits Baja, JMstar, Jonway, Lance, NST, Peace, Roketa, Sunl, Tank, TNG, Vento, VIP and many others..

Clutch Nut (M12) CFmoto CF250 172MM F-1040-0012-FNSL1.25
$4.99 $4.99 Add to Cart

This is a Rear Clutch Nut for the CFmoto CF250 engine - scooter. (M12 x 1.50)

Clutch Nut Rear (M10) GY6 50 139QMB F-1040-0010-FNS1.25
$4.99 $4.99 Add to Cart

This is a Rear Clutch Nut for the GY6-50cc 139QMB 1P39QMB scooter. (M10 x 1.25)

Clutch Racing Performance GY6 50 125cc 139QMB 101-1007-0003
$34.99 $34.99 Add to Cart

  • This is a racing high performance clutch for the 4 stroke GY6 50cc 139QMB engine.

 

  • This performance clutch often requires a Performance Clutch Bell and may not fit your OEM bell. If it does not fit your OEM bell, we have the matching performance clutch bell housing part number 101-1007-3001

 

  • Measures Approx. 3 7/8", 99mm on the back plate 

 

  • This clutch has high friction clutch pads, rigid backing plates and actuation arms, and performance clutch springs.
Clutch Spring Set 1.5K 1500 RPM Racing GY6 50 139QMB 1P39QMB Honda DIO 101-1029-1002
$8.99 $8.99 Add to Cart
5 out of 5 Stars!

These are racing performance clutch springs that fit all clutches on the Chinese  GY6  50cc, quads, mopeds, ATVs, go- karts, and buggies. This transaction is for (one set of 3) 1.5K 1500RPM springs.

Measurements:

  • Spring Coil: 12.23mm
  • Spring Length: 32.20mm


We also sell the 1K and the 2K Racing performance clutch springs.


Clutch Spring Set 1K 1000 RPM Racing GY6 50  139QMB 1P39QMB Honda DIO 101-1029-1001
$8.99 $8.99 Add to Cart

These are racing performance clutch springs that fit all clutches on the Chinese  GY6  50cc, quads, mopeds, ATVs, go- karts, and buggies. This transaction is for (one set of 3) 1K 1000RPM springs.

Measurements:

  • Spring Coil: 12.23mm
  • Spring Length: 32.20mm


We also sell the 1.5K and the 2K Racing performance clutch springs.

Clutch Spring Set 2K 2000 RPM Racing GY6 50 139QMB 1P39QMB Honda DIO 101-1029-1003
$8.99 $8.99 Add to Cart

These are racing performance clutch springs that fit all clutches on the Chinese  GY6  50cc, quads, mopeds, ATVs, go- karts, and buggies. This transaction is for (one set of 3) 2K 2000RPM springs.

Measurements:

  • Spring Coil: 12.23mm
  • Spring Length: 32.20mm


We also sell the 1K and the 1.5K Racing Performance Clutch Springs.

Clutch Torque Spring 1.5K 1500 RPM Racing GY6 50 139QMB 1P39QMB Honda DIO 101-1030-4002
$12.49 $12.49 Add to Cart

These are performance torque springs for the Chinese made GY6, 4T, 50cc engine 139QMB used on scooters, quads, mopeds, ATVs, buggies and go-karts. These come in 1K, 1.5K, and 2K spring rates. These are Performance Torque Springs to maximize your engine's torque and response. These top performing springs will give you back your acceleration, hill climbing ability and make your machine run as a top performer once again. Torque springs should be changed about every 800 miles because of heat and fatigue.

Mechanic Note: Torque Springs come in (3) different rates or RPM ratings, 1000 (1K) often Blue, 1500 (1.5K) often Yellow, and 2000 (2K) often RED. The lowest rated 1K may give you a higher speed overall but will engage at a lower RPM on take-off. If you or your scoot are heavy, you may be disappointed in the initial torque, take off and acceleration. The 1K will also have the hardest time "pulling the hills". On the other end the 2K will give you the greatest grabbing power and a higher RPM at take-off, and will pull the hills the best, but may be slower in speed overall. The 1.5K is in the middle. If you go with a heavier torque spring, you may want to go to a slightly higher variator roller or slider weight. At the same time, if you go to a lower RPM spring, you may need to go to a lighter weight. It is a fine line to find balance between torque spring and variator roller weight, achieved only through trial and error

Clutch Torque Spring 1K 1000 RPM Racing GY6 50 139QMB 1P39QMB Honda DIO 101-1030-4001
$12.49 $12.49 Add to Cart

These are performance torque springs for the Chinese made GY6, 4T, 50cc engine 139QMB used on scooters, quads, mopeds, ATVs, buggies and go-karts. These come in 1K, 1.5K, and 2K spring rates. These are Performance Torque Springs to maximize your engine's torque and response. These top performing springs will give you back your acceleration, hill climbing ability and make your machine run as a top performer once again. Torque springs should be changed about every 800 miles because of heat and fatigue.

Mechanic Note: Torque Springs come in (3) different rates or RPM ratings, 1000 (1K) often Blue, 1500 (1.5K) often Yellow, and 2000 (2K) often RED. The lowest rated 1K may give you a higher speed overall but will engage at a lower RPM on take-off. If you or your scoot are heavy, you may be disappointed in the initial torque, take off and acceleration. The 1K will also have the hardest time "pulling the hills". On the other end the 2K will give you the greatest grabbing power and a higher RPM at take-off, and will pull the hills the best, but may be slower in speed overall. The 1.5K is in the middle. If you go with a heavier torque spring, you may want to go to a slightly higher variator roller or slider weight. At the same time, if you go to a lower RPM spring, you may need to go to a lighter weight. It is a fine line to find balance between torque spring and variator roller weight, achieved only through trial and error

Clutch Torque Spring 2K 2000 RPM Racing GY6 50 139QMB 1P39QMB Honda DIO 101-1030-4003
$12.49 $12.49 Add to Cart

These are performance torque springs for the Chinese made GY6, 4T, 50cc engine 139QMB used on scooters, quads, mopeds, ATVs, buggies and go-karts. These come in 1K, 1.5K, and 2K spring rates. These are Performance Torque Springs to maximize your engine's torque and response. These top performing springs will give you back your acceleration, hill climbing ability and make your machine run as a top performer once again. Torque springs should be changed about every 800 miles because of heat and fatigue.

Mechanic Note: Torque Springs come in (3) different rates or RPM ratings, 1000 (1K) often Blue, 1500 (1.5K) often Yellow, and 2000 (2K) often RED. The lowest rated 1K may give you a higher speed overall but will engage at a lower RPM on take-off. If you or your scoot are heavy, you may be disappointed in the initial torque, take off and acceleration. The 1K will also have the hardest time "pulling the hills". On the other end the 2K will give you the greatest grabbing power and a higher RPM at take-off, and will pull the hills the best, but may be slower in speed overall. The 1.5K is in the middle. If you go with a heavier torque spring, you may want to go to a slightly higher variator roller or slider weight. At the same time, if you go to a lower RPM spring, you may need to go to a lighter weight. It is a fine line to find balance between torque spring and variator roller weight, achieved only through trial and error

Coil CFmoto 250cc 172MM CF250 CN250 Scooter ATV Quad Buggy Go Kart 600-1008-0010
$10.99 $10.99 Add to Cart

This is a standard OEM replacement Coil for the 4 Stroke, Chinese Engines, GY6 50, 150, 250, CH250, CN250, CF250, 139QMB, 157QMJ, 172MM

Coil High Performance GY6 CFmoto 250 Scooter Moped ATV 201-1008-0002
$12.39 $12.39 Add to Cart

This is a high performance ignition coil for all GY6, 4-stroke engines including the 50cc, 125cc, 150cc, and 250cc Chinese engine. This coil will greatly increase your spark and improve your performance, acceleration, starting, and fuel mileage. These are easy to install on any engine. This coil fits the 139QMB, 152QMI, 152QMJ, 157QMI, 157QMJ, CF250 and 172MM. This fits the GY6 on Baja, JMStar, Jonway, Lance, NST, Roketa, Sunl, Tank, Tomos, TNG, Vento, VIP and many others.
 
Mechanic Note : There is no guarantee of performance because engines may have other performance issues. Check out our rebuild kits to go to the next step!

Crankcase Cover Gasket Right GY6 50 139QMB 100-1001-2102
$4.99 $4.99 Add to Cart

Crankcase Cover Gasket for the Right Side on the 4 stroke GY6-50, 139QMB, QMB139 engines.

Crankcase Cover Right GY6 50 139QMB QMB139 100-1001-4003
$33.99 $33.99 Add to Cart

Crankcase Cover, Right, for the GY6-50cc 4-stroke 139QMB QMB139 engine.

Crankcase Gasket Right GY6 50 139QMB QMB139 100-1001-2101
$6.99 $6.99 Add to Cart

Crankcase Gasket, Right Side, for the GY6-50, 139QMB QMB139 engines.

Crankcase Left GY6 50 139QMB QMB139 Long Case 16.8" 100-1001-4001
$87.50 $87.50 Add to Cart

Crankcase, Left Side, for the GY6-50 (Long Case Type-B) 4-stroke 139QMB QMB139 engines. For the 12" rear wheel. Overall length 427mm, 16.8" long.

Crankcase Left GY6 50 139QMB QMB139 Short Case 100-1001-4000
$87.50 $87.50 Add to Cart

Crankcase, Left Side for the GY6-50 (Short Case Type-A) for 50cc 4-stroke 139QMB QMB139 engines with the 10" rear wheel. Length 400mm, 15.75".

Crankcase Right GY6 50 139QMB QMB139 100-1001-4002
$43.99 $43.99 Add to Cart

Crankcase, Right Side,  for the 4 stroke GY6-50cc 4-stroke 139QMB QMB139 engine. 

Cylinder Dowel Kit Pair GY6 50 139QMB B-100-1010-5001
$4.99 $4.99 Add to Cart

This is a complete replacement set of engine locator dowels (4) (O/D M8 x 14mm  I/D M7) for the 4 stroke GY6 50cc 139QMB engine. Theses dowels go between the crankcase, cylinder and head.

Cylinder Top End Rebuild Kit 39mm 13mm 4 Stroke GY6 50 139QMB 100-1010-3001
$27.39 $27.39 Add to Cart

This is a quality 39mm/13mm wrist pin) OEM replacement Cylinder Top End Rebuild Kit is for the 4-stroke, GY6 50, 139QMB engine. This kit includes the cylinder, 39mm piston, rings, 13mm wrist pin, circlips, head gasket, base gasket and exhaust gasket. This engine is on the Baja, JMstar, Jonway, Lance, NST, Peace, Roketa, Sunl, Tank, TNG, Vento, VIP and many others.

Engine Cooling Shroud (Lower) GY6 50 139QMB 100-1048-0001-L
$17.99 $17.99 Add to Cart

This is the lower replacement Engine Cooling Shroud for the GY6 50cc 139QMB engine. This engine shroud will protect your engine and prevent overheating.  Replace yours today.

Engine Cooling Shroud (Upper) GY6 50 139QMB 100-1048-0001-U
$17.99 $17.99 Add to Cart

This is the Upper replacement Engine Cooling Shroud for the GY6 50cc 139QMB engine. This engine shroud will protect your engine and prevent overheating.  Replace yours today.

Exhaust Gasket Ring GY6 50 139QMB B-100-1013-2002
$4.99 $4.99 Add to Cart

This is a Exhaust Gasket Ring for the 139QMB, GY6, 50cc 4-stroke engine. Make your engine sound good again. This gasket fits Baja, JMstar, Jonway, Lance, NST, Peace, Roketa, Sunl, Tank, TNG, Vento, VIP and many others.

Exhaust Stud (6M x 1.0) Muffler Cap Nut GY6 Honda Style Horizontal Dirt Pit Bike Quad ATV F-1040-0006-CAPN1.0
$4.99 $4.99 Add to Cart

Exhaust Stud (6M x 1.0) and Muffler Cap Nut for the 6mm GY6 50cc, 125cc, 150cc, Horizontal 50 -125

Exhaust Stud Bolt Set 6mm (Set of 2) GY6 50 150 139QMB 157QMJ B-100-1013-3000
$4.99 $4.99 Add to Cart

This is a replacement exhaust stud bolt set (M6 x 1.0 x 32mm)is for the 4-stroke, GY6 50cc and some 125cc and 150cc engines. These directly replace the stock bolts.

Exhaust Stud Bolt Set 8mm (Pair) GY6 150 157QMJ B-200-1013-3001
$4.99 $4.99 Add to Cart

Exhaust Stud Bolts, (1 Pair) M8x1.25 for the 172MM 250cc 4-stroke water-cooled CF250 CN250 engines and GY6 125cc/ 150cc  and the ZNEN GY6 150cc 4-stroke engines found on the Bintelli, Gorilla Motor Works (GMW) and Puma scooters and many others makes & models.

Exhaust Stud Nuts (Pair) GY6 6M Locking Alloy F-1040-0006-CN1.00
$4.99 $4.99 Add to Cart

This is one pair (2) nut fasteners for the GY6 Exhaust Stud Bolts.  This is made from a special aircraft alloy metal that withstands high temperatures.  This is a locking nut to handle the vibrations.  Also, this nut will not rust or corrode, making it much easier to change or remove at some later date.

Fan Flywheel GY6 50 139QMB 100-1014-0001
$6.99 $6.99 Add to Cart

This Flywheel Engine Cooling Fan is for the 4-stroke, GY6 50, 139QMB engine. This fan will replace faulty or broken fans and keep your engine running cool. This fan fits Baja, JMstar, Jonway, Lance, NST, Peace, Roketa, Sunl, Tank, TNG, Vento, VIP and many others.

Fan Variator 4 Stroke GY6 50 139QMB 100-1014-0002
$4.99 $4.99 Add to Cart

This is the belt and Variator Cooling Fan for the 4 stroke, GY6 50, 139QMB engine. This fan fits Baja, JMstar, Jonway, Lance, NST, Peace, Roketa, Sunl, Tank, TNG, Vento, VIP and many others.

Mechanics Note : If you have a broken belt it will likely damage this fan. Don't let belts overheat and break again. This is an easy and inexpensive way to improve belt wear and solve that problem once and for all.

Flywheel Rotor Nut (M10) GY6 50 139QMB F-1040-0010-FNSL1.25
$4.99 $4.99 Add to Cart

This is a replacement Flywheel Rotor Nut and Clutch Nut for the GY6-50 139QMB engine to replace your stripped out, worn out or lost original. (M10 x 1.25 cerrated)

Flywheel Rotor Nut (M10) GY6 50 139QMB F-1040-0010-FNS1.25
$4.99 $4.99 Add to Cart

This is a replacement Flywheel Rotor Nut and Clutch Nut for the GY6-50 139QMB engine to replace your stripped out, worn out or lost original. (M10 x 1.25 cerrated)

Fuel Filter In line Universal B-1-1016-0001
$4.99 $4.99 Add to Cart

This is a standard universal in-line fuel filter for your scooters, buggies, quads, ATVs, go-karts, dirt bikes and pit bikes.

Fuel Pump Vacuum operated GY6 139QMB 157QMJ 1-1016-1007
$24.99 $24.99 Add to Cart

Fuel Pump, GY6-50 - 150cc, 4-stroke, Vacuum operated,  Hole spacing: 76mm,  Overall Height: 33.5mm, fits various makes and model scooters

Fuel Valve 3 way In line GY6 Scooter Moped ATV 1-1016-1001
$11.99 $11.99 Add to Cart

This is an easy to install, single bolt mount, 3-way, 3-port in-line vacuum operated fuel valve petcock (aka fuel pump) for many engines including the GY6 engine. This valve can be found on the Adly, Baja, JMstar, Jonway, Lance, NST, Peace, Roketa, Sunl, Tank, TNG, Vento, VIP, and many others... We ship the same day as ordered, for quick service!

Mechanics Note: If the diaphragm inside this valve fails, it will supersede your carburetor float valve and cause your engine to flood to where it will cause it to lock-up while sitting. This valve has a single bolt mount for easy installation. . Get quality products you can trust from us!

Fuel Valve 4 Way In Line GY6 139QMB 157QMJ 1-1016-1004
$11.99 $11.99 Add to Cart

Fuel Valve Petcock, 4-Way, 4-Port, (In-Line), GY6, 4-stroke, vacuum operated, Hole I/D: 7mm, (fits Tank, Sunl, Roketa, Vento, TNG, VIP, Baja, Jonway, JMstar, Peace, Lance, NST, Adly as well as others)

Fuel Valve M14 x1.0 Eton E-ton Beamer I Eton Beamer II Scooters 750128 1-1016-1005
$17.89 $17.89 Add to Cart
5 out of 5 Stars!

This vacuum operated, tank-mounted, fuel valve petcock (aka fuel pump) is found on the 2005 & earlier and 2006 - 2010 E-TON Beamer PN, PN2, PN2B, PN2C, PN2D, and PN2G, with OEM part numbers 750128 .  This valve has been known to fit some Benelli, Diamo, Eurastrada Rx8 50cc 2T, Honda's, Honda Aero 83 - 84, Honda Spree 83 -84,  Keeway, Matrix 50, some QJ scooters such as QJ B08, Strada RX8, Velocity GTX 50, Vento Phantom R4I and Vento Triton, Yamati,.  These valves often go bad or are suspect.

Please check your measurements before ordering since we sell 3 different fuel valves which look exactly alike with the only difference being the internal measurements. All 3 valves have a 22mm nut.

Please note that Eton uses two different fuel valves. Some Eton products such as the Viper, Yukon and Yukon II take our other listing, the M16x1.0 Fuel Valve,   Please measure the nipple on the bottom of your tank or the inside diameter of the valve nut to see if it is M14 (.55", just under 9/16") or 16mm (.62" 5/8")  to be sure you are ordering the correct one for your engine.  Both Valves have a wrench size of 22mm to remove the nut and valve.
 

Measurements:

  • Valve Nut I/D: 14mm
  • Tank Nipple O/D: 13.99mm
  • Nipple Threads; Very- Fine
  • Nut Wrench Size: 22mm

 

 


 

Fuel Valve M16x1.0 Eton E-ton Viper Yukon Yukon II Scooter Moped ATV 810419 1-1016-1006
$15.99 $15.99 Add to Cart
4 out of 5 Stars!

This vacuum operated, tank-mounted, fuel valve petcock (aka fuel pump) is found on many of the E-TON buggies, scooters & ATV's with OEM part numbers 810419 These valves often go bad or are suspect.

These fit the E-TON 2009 Viper 150 RXL-150R09, 2005 - 2008 Viper 150 RXL-150R, Yukon 155cc, 2008 & earlier Yukon YXL-150, 2005 - 2010 Yukon II CXL-150 and many other brands and models.

Please note that Eton uses two different valves. Most Eton Beamers take the M14x1.0 Fuel Valve.  Please measure the nipple on the bottom of your tank or the inside diameter of the valve nut to see if it is M14 (.55", just under 9/16") or 16mm (.62" 5/8")  to be sure you are ordering the correct one for your engine.  Both Valves have a wrench size of 22mm to remove the nut and valve.
 

Fuel Valve M16X1.5 GY6 139QMB 157QMJ 172MM Scooter Moped ATV 1-1016-1002
$9.99 $9.99 Add to Cart

This is the most commonly found tank mounted Fuel Valve Petcock, (M16x1.5), GY6-50, GY6-125, GY6-150, GY6-250, 139QMB, 152QMI, 152QMJ, 157QMI, 157QMJ, 172MM, vacuum operated, fits Baja, Jonway, JMstar, Peace, Lance, NST,  Roketa, Sunl, Tank, TNG, Vento, VIP, as well as others.

Measurements:

  • Valve Nut I/D: 16mm +
  • Tank Nipple O/D: 15.75mm
  • Nipple Threads; Semi- Fine
  • Nut Wrench Size: 22mm
Fuse GY6 Scooter Moped Quad ATV Go Karts B-1-1049-0003
$4.99 $4.99 Add to Cart

This is the standard replacement barrel fuse for all GY6 scooters, ATVs, quads and buggies. It is good to have extras when you need them.

Gasket Head & Base Set 47mm GY6 50 139QMB 80cc Big Bore 101-1017-0014
$9.99 $9.99 Add to Cart

This is the Head & Base Cylinder Gasket, for the 47mm GY6 80 Big Bore on the GY6 50 139QMB base.

Gasket Head & Base Set 51mm GY6 50 139QMB 110cc Big Bore 101-1017-1022
$9.99 $9.99 Add to Cart

This is the Head & Base Cylinder Gasket, for the 51mm GY6-110 Big Bore on the GY6-50 139QMB base.

Gasket Head & Base Set 52mm GY6 50 139QMB 125cc Big Bore 101-1017-1023
$9.99 $9.99 Add to Cart

This is the Head & Base Cylinder Gasket, for the 52mm GY6-125 Big Bore on the GY6-50 139QMB base.

Gasket Head and Base Set 39mm GY6 50 139QMB 100-1017-1020
$4.99 $4.99 Add to Cart

This is the Head and Base Gasket Set for the OEM Replacement, GY6-50, (39mm) 139QMB

Gasket Intake Manifold Insulator GY6 50 139QMB 1P39QMB B-400-1005-2010
$4.99 $4.99 Add to Cart

This is the Intake Manifold Insulator Gasket for the 4 stroke GY6 50cc 139QMB 1P39QMB engine.

Mechanics Note: This gasket sits between the head and the manifold. Like the manifold, these will get old over time and leak air causing the engine to run poorly. We suggest you replace these and the Insulator whenever you change the manifold to avoid problems later. Keep these in stock!

Gasket Set 39mm Long Case 10 Bolt 4 Stroke GY6 50 139QMB 1P39QMB 100-1017-0001-L
$9.89 $9.89 Add to Cart

This is a Complete OEM replacement Engine Gasket Set for the stock Long Case (10 bolt belt cover) 39mm 4 stroke GY6 50cc, 139QMB engine. This complete gasket set fits the Baja, JMstar, Jonway, Lance, NST, Peace, Roketa, Sunl, Tank, TNG, Vento, VIP and many others.

Gasket Set Short Case 8 bolt 39mm 4 Stroke GY6 50 139QMB 1P39QMB 100-1017-0001-S
$9.89 $9.89 Add to Cart

This is a Complete OEM replacement Engine Gasket Set for the stock Short Case (8 bolt belt cover) 39mm 4 stroke GY6 50cc, 139QMB engine. This complete gasket set fits the Baja, JMstar, Jonway, Lance, NST, Peace, Roketa, Sunl, Tank, TNG, Vento, VIP and many others.

Ignition Pick Up Coil Pulse Trigger GY6 139QMB 157QMJ 1-1019-0002
$9.95 $9.95 Add to Cart
5 out of 5 Stars!

This is the Ignition Pick Up Trigger or Pulse Coil for the GY6 50cc, 125cc, and 150cc engines.

Intake Manifold GY6 50 139QMB 100-1020-0001
$6.99 $6.99 Add to Cart

This intake manifold fits all 4-stroke GY6 139QMB 50cc engines. This intake has a vacuum line nipple and is easy to install with a 2-bolt installation. Brands and models with this engine type include Baja, JMstar, Jonway, Lance, NST, Peace, Roketa, Sunl, Tank, TNG, Vento, VIP and many others .

Mechanics Note: The rubber on the intake manifold can get old and crack causing the engine to run poorly and not stay at idle. This is an easy way to fix this.

Intake Manifold Retaining Stud Bolts 6mm (Set of 2) GY6 50 150 139QMB 157QMJ B-100-1020-1009
$4.99 $4.99 Add to Cart

This is a new set of Intake Manifold Retaining Stud Bolts (2) (M6 x 1.0 x 63mm) for the GY6 50cc 125cc and 150cc engines.  Replace your rusted and worn out bolts with a brand new set!

Kick Start Idler Gear w/ Gear Drive GY6 50 139QMB 100-1022-0001
$5.89 $5.89 Add to Cart

Kick-Start Idler Gear, with drive gear, GY6-50, 139QMB, fits Baja, JMstar, Jonway, Lance, NST, Peace, Roketa, Sunl, Tank, TNG, Vento, VIP and many others.

Kick Start Lever GY6 50 139QMB 100-1022-0003
$8.24 $8.24 Add to Cart

This is a replacement kick-start lever for the GY6 50, 4 Stroke, 139QMB scooter. This fits Baja, JMstar, Jonway, Lance, NST, Peace, Roketa, Sunl, Tank, TNG, Vento, VIP and many others.

M16 x 1.50 Flanged Locking Nut F-1040-0016-FLN1.50
$4.99 $4.99 Add to Cart

This is a M16 x 1.50, Flanged locking nut, Sunny-Style, for many application including the Wheel lock nut on the Handsome-Boy Scooters and 250cc 4-stroke water-cooled CN250 172mm engines.