For: 50cc, 70cc and 80cc scooter engines — EVO, 5BM, 5SU and 1E40QMB types
Also suits many GY6 50–150cc and similar scooter, ATV and buggy engines with matching dimensions
Before ordering: measure your existing cylinder bore and piston pin — these are generic parts and the listed machine names are only a guide, not a guaranteed fit.
Aftermarket parts. Engine rebuilding is skilled work; have it done by a mechanic if you are not confident.
