After reading everything on this excellent site, I thought it safe to whip out my Credit Card and buy a 2 stroke "80cc" Chinese Kit.

I've seen these advertised as 65cc, 67.Xcc, 70cc and 80cc. I've seen them advertised as square engines, round engines, black engines, new Roller bearing engines (no.9), new roller bearing engines (no.10), and larger cooling fin engines.

And now, just as I'm about to purchase a kit, I see a 66cc EPA approved motor!!! With "Russian Clutch Lever".

All these engines, (from the pictures at least) look totally identical to me.

I'd like to have the latest engine, but even more important, I'd like to purchase an engine that has the most common and interchangeable parts.

Can someone please comment on the interchangeability of spare parts for these engines?

Any help is greatly appreciated as I'd like to purchase the motor soon.

-Ritchie.