Crankshaft w/ Connecting Rod 10mm Wrist Pin 49cc JOG Minarelli 2 Stroke 1PE40QMB 1E40QMB Scooter Moped ATV

Crankshaft w/ Connecting Rod 10mm Wrist Pin 49cc JOG Minarelli 2 Stroke 1PE40QMB 1E40QMB Scooter Moped ATV
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Price: $79.99 $79.99
Availability: In Stock
Part Number: 300-1009-0008
Average Rating: Not Rated

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 This is a high quality replacement Crankshaft and Piston Rod for the 49/50cc JOG Minarelli engine. 1E50QMF, 1E40QMB.  These are better than the stock crankshaft and piston rod. This crankshaft comes a rod for a 10mm wrist pin. We also carry the replacement Crankshaft Bearings and Seal Kit (part # 300-1009-0010).

 

Mechanics Note: There are two different size wrist pins in the Minarelli 2-stroke JOG engines, the 10mm and 12mm. If your not sure what you have and you have not torn your engine down yet, your variator may provide the key. One variator has a 18mm inner slider bushing diameter, the other with an 21mm diameter. This size corresponds with your engine's piston wrist pin diameter. An 18mm has a 10mm wrist pin and the 21mm has a 12mm wrist pin. Another way to tell which size to order, is to count the outer drive face teeth (fan). The 18mm has 17 teeth and the 21mm variator has 15 teeth on the face.

Measurements:

  • Overall Length: 238mm
  • Flywheel Thread Size: M12 x 1.25
  • Flywheel Thread Length: 16mm
  • Drive End Thread Size: M10 x 1.25
  • Drive End Thread length: 10mm
  • Piston Wrist Pin Hole: 13.8mm
  • Overall Connecting Rod Length: 104.7mm
  • Circle Crank Diameter: 72mm
  • Number of Splines: 15
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