60H5E111Piston and cylinderFollowing items have been given to improve the durability for the piston and cylinder.A hard anodic oxide coating has been given to the piston pin boss and piston ring groove of the #1and #2 piston.Multilayer plating has been given to the piston ring.The cylinder sleeve without the exhaust slit has been adopted not to accumulate some deposits,which can prevent the piston rings from entwining.Also, the shape of the exhaust port has been given the gradual curve design to obtain the best engineperformance and avoid scuffing of the piston ring.60H100401-8PistonHard anodic oxide coatingExhaust slitCylinder sleeveExhaust portScavenging portCylinder sleeve(New models)(Previous models)Features and benefits
