you could paint over the dirty and then its clean again!!

 

OH SH*t your right!!!!!!!!!!!!!!!!!

 

That was a really great little show. That guy knows how to clean a motorbike!

 

Zombie thread!

 

Best thing for cleaning grease and grime off an engine is purple cleaner from a kragen or autozone u can also use it on a lot of other thing just make sure u read on how much to dilute it I swear by the stuff and just recently used it to restore my bike to a nice shine of course to clean the engine best u need to drop it from the frame