Never really put much thought to this before. I picked a chain length that positioned the engine “about right” and in a location for the already drilled starter hole on my old kart. When I’d change sprockets I’d never change chain length just move the engine an inch or two to make it all work
I’m thinking about it now should the engine position be based on what’s optimal when scaling the kart and whenever possible should I be changing chain length. Not engine position, to acomodate gear changes?
Is this a complete over-analysis of the whole topic?