I found an old kamasura on an old bike at my dads house in louisiana. It uas been sitting uo for at least 15 years that i know of. Probably more than that. I took it home and startrd disassembling thrle thing and it was totaloy locked up. Took me at least 3 days strait to finally get it unlocked, but i got it...are these good motors or not? I think it aslo says on the side...66 cc of oil? Does that sound rite?