Tips on motor mount adjustment?

I have an ’05 800 EFI sportsman that I recently diagnosed has a bad one way clutch bearing. This in and of itself sucks simply because it’s the first thing I haven’t been able to fix myself, so I will be pulling the clutch off and taking it to the dealer to have the bearing replaced . Anyway, while looking at clutch alignment I also noticed the belt is not riding in the center of the bearing. The motor mounts are all pushed to the far side, and I think bringing it back to the middle of the adjustment range would get it where it supposed to be. I discovered I have one broken front motor mount which I’m replacing, but for the life of me even when all three mounts are loose I can’t budge the motor. I obviously don’t want to tear anything up, so any tips on getting the motor to move back to the midpoint? Is there another mount or something I need to loosen that I missing? Any help or advice appreciated.