Just have a few questions for you guys that run a Metro or any other belt drive mower. I'm having problems going up hills etc. I usually have to hop off the sulky to help push it up not very high inclines, but it wont even go up slopes or hills even with my assistance.( even without the sulky ) My questions are do i need new drive belts or new idler pulleys or both? I know for a fact that its not the transmision. It seems to be operating smoothly. Thanks, Tyler.