It might seem dumb but what plug should I get for Evolution Engines Trainer Power System 46 (I bought the engine from a guy at the field but the plug was busted)?

An R/C long plug should work fine. Fox, K&B, OS just to name a few. [&:]

Thanks, that's what I thought.

An OS 8 works in about any two-stroke. I quit using anything else. When I have trouble with that, I'll try something else, haven't had yet!

Thank you, I've already got it.