Piston. 56mm or 56.5mm. YX 140 racing Engine. 13mm Gudgeon pin
Direct fitment to the stock YX 140 engine
Can be used with either stock or high compression head but worth using the high comp head as the sqish is poor on the stock YX
Specifications:
- A = 56mm or O/S 56.5
- B = 56mm is 47mm 56.5mm is 45mm
- C = 13mm
- D = 56mm is 29.9mm 56.5mm is 27mm
- E = 56mm is 20.7mm 56.5mm is 20.3mm
- F = 45mm
Please check all the dimensions so you know the piston will work with your application
Piston kits come complete with Rings, Pin, Cir clips. These will be inspected and fitted before dispatch.
We have put a new wider pocket in the inlet side so you han run with stock base gasket and 27 or 28mm inlet valve