O.K. Here's the problem. My aunt has a lawnboy self propelled push mower that is a few years old. Well, my grampa changed the axle on it cause the old one had too much back lash in the gear that was driven by the pulley, so it no longer pulled. Well, the new one had acted up in a strange way, it would free wheel when pushed forward but would engauge when pulled backward. For some reason it stopped doing it for a little while but now it is doing it again. I took appart both wheel assemblies and everything can only go one way. Any clue why it would act this way? My last option would be to add a washer to the gear on the old one and put the old one back on. Anybody has any ideas?????? Thanks.

My Poulan yard tractor (model # HD145H42H) is not delivering any power to the drive wheels. I have checked to make sure that the "freewheel" (which disengages the rear wheels so you can push the tractor) is set to "run". The engine will start and runs fine, so the starter must "know" when I have pressed the brake / cluth pedal (or else the starter wouldn't start the engine). However, once the engine is running, I put it in gear (I've tried both forward and reverse) and release the brake / clutch pedal there is no power to the wheels. I'd appreciate confirmation of my diagnosis that this is a clutch problem. Detailed instructions and pictures would help a lot! Or suggestions on where to get them. Thanks in advance!