Made a gear change at the track on Friday tightend up the motor chain had alittle slop in it just how I want it. When I got home the chain was alittle tight but when I spun the axle alittle it would loosen up so I was tight in one spot and loose in another. I haven't touched the kart since taking it off the track and put up in the garage. This morning I just came out here and this chain is so tight I can barely turn the axle. What am missing here guys?