im haveing problem with my xray nt1. the clutch preload adj. nut keeps winding it self on dont no if i should use more shims an ajust the end play or clutch gap or behind thhe flywheel im useing an os tg motor can any 1 help

Try a bit of thread lock

Check also that the flywheel nut is tight and that you have the right collet for the engine. If the crank can spin independantly of the flywheel, it will wind the nut on tighter.