I’m thinking about replacing my old rotax with an lo206. But not to sure of my karts rear cross member will be an issue. It’s an early 2004 kinetic I think there is enough clearance between my seat but I think the cross member be an issue
It should be ok. The chain might rub the rail a bit, but you can cover the rail if you’re worried. Even something as hacky as some radiator hose will do.
Main thing is to get a mount with enough offset adjustment.