crispins
FJB
it does look to be sitting on top but the angle part of the belt is inside the sheaves on the driven.If you look at his picture you can see the belt sitting on top of the sheeve. It is not set down in the pulley. The very outside of the belt should be within the outer diameter of the driven. The driven is not shifting at all and as the primary is trying to shift it is pulling on the motor mounts.
It def does not look right but to me getting the engine / trans solid mounted needs to be the first step as the force being applied to the belt is lost by the rocking motion of the engine.
I think with more belt tension the belt may be into the driven sheave further instead of sitting on top of it.
My belts on all my UTVs are def much tighter then his.