I have an m4900 with 53 hours. Recently when backing out of the storage area I have noticed the clutch sort of jerking when I start to backup. This does not occur all the time nor when going forward but it has happened a few times just after startup. Tractor has never been rained on so I suspect oil on clutch. Does this sound right or what do you think. Any help appreciated. /forums/images/graemlins/ooo.gif