You are sure it is the motor. I have a Bandit 90 and this past spring the valve went and I couldn't get the feed wheels to work. Changed it out and works like a charm again.
My 90xp started slowing the infeed the lever seemed fine just loosing power. And like the poster above it was the infeed handle valve its a off the shelf wood spitter valve check that first its cheap. Actually i have replaced it 2x. It seems like a hyd pump failure.