I'm going to mount a 42cc chain saw engine over the rear wheel. I need to get the right chain to run from the sprocket on the engine to the sprocket on the wheel. How do I know which is the right chain to use? I've seen what they call BMX chain, for single speed bikes, and another kind for multi-speed bikes. Can I use bicycle chain or do I need heavier chain? How do I know if the chain will mesh with the teeth on the sprockets? Is there some sort of chain guide I can refer to?