I good friend of mine has a 400 Foreman and he is at wits end. It's lacking low end power. The engine is set up right and runs fine. The problem is when he gets stuck in anything, sand snow or mud, the bike can't spin the tires which are stock. He has had it at the dealer and they did a clutch upgrade form Honda, checked the oil pressure at the tanny output (Automatic) and they can't find anything. If anyone has run into this help would be great. This is the second bike with the same problem that we know of.

Thanks