Originally posted by: recon99
It's the starter clutch (one-way). You don't hear about it with the Wolvy much, but they have the same starter clutch the warrior and raptor 350 have been using since 1987, and they're know to go out. When they start to get bad, they get free play and don't work smoothly, that's what causes that clunk clunk clunk sound when you start it, and then usually another clunk from the bottom end when you shut the engine off or it stalls. My warrior is a 2001, and I had to get mine replaced last year. The parts will cost you about $200 if you can do the repair yourself. You will need the one way assembly and the gear the one-way mates with. If you try to save money and just replace the one-way, that pitted up gear will tear up your new one-way real quick, and you're out of another 200 bucks.