Zongshen Z155 Crankcase Right Side - Upgrade
 
As of late 2020 Zongshen factory released the latest Z155 engine with upgraded crankcase housing a needle roller bearing.
 
These crank casings will fit older generation Z155 engines but you would need to modify and add a few components:
 
	
Kickstart idle gear shank needs to be reduced from 9.50mm to 6.50mm (comparison shown in photo)
	
Shim washer between 4th gear on output shaft and needle roller bearing should be 0.50mm
	
Shim washer between Kickstart idle gear and needle roller bearing should be 1.40mm instead of the old 0.50mm
 
THIS IS FOR RIGHT HAND SIDE ONLY (CLUTCH SIDE)
 
NOT THE SAME AS YX160

Item Includes (refer to item picture):
•1x Z155 R/H Uprated Crankcase With Bearings 
 
PLEASE NOTE THIS SHOULD BE FITTED BY A QUALIFIED MECHANIC