buster6315 wrote on 05/23/17 at 18:58:36:I like to jack the rear wheel off the ground, and turn the wheel forward and rearward, to see how the belt rides in the rear pulley.
When using this method to check, the axle must be pretty snug, as the pulley hub is pulled into contact with the hub bearing by the axle. If you try to check the belt tracking with a loose axle - the belt will not track the same way that it will when the axle is tightened (the pulley can shift forward under belt tension, and cause the belt to move outward on the pulley).