You will send us your cylinder and we will bore it.If you want your cylinder bored, you must have your head reshaped.Yamaha brand 60cc piston, needle bearing, rings, head and base gasket can be purchased to have the best overall 60cc product on the market This a service, not a p..
*Motor and transmission completely disassembled.
*All bearings replaced with higher quality, "stock legal" bearings.
*All bearing bores are measured for proper press fit dimensions and adjusted if necessary
*New crank seals installed
*Cylinder is honed to match a new OEM piston.