First off pardon my lack of engine jargon...
I took the piston head off my moped and it was all dirty inside the chamber the piston pumps in. I cleaned it best I could with a napkin and wd40.... but it is still far from immaculate. How should I go about cleaning my piston?
Would I be better off just replacing some parts? Like everyone I am looking for cheap fixes to get more speed.
I was looking at this kit from 1977.... any advise?