(also posted in ATC thanks for any help)

Hi everyone.

Last year I bought a 300ex with a 350x motor in it. I heard it run when I bought it but that was the last time I had it running since then, untill last weekend.
I adjusted the valves and decompression cable and it was running really strong. I pull started it behind a car and when it started up i pulled in the clutch and stopped it to take of the tow rope. While I was waiting for someone to take off the tow rope the clutch suddenly engaged, luckily i was quick enough on the brake to stop it and kill it before I hit the car. Anyone have any ideas on this? Now I can even manually dissingage the clutch all the way (down at the engine) with it in gear (shut off) and when I push it there is still lots of drag on the engine. I have the service manual and it looks like a really big job to replace the clutch so I'm wondering if anyone has any ideas before I tackle theis project. Any input would be much appreciated as I would REALLY like to get this quad on the trail THIS season.

Thanks again,
Justin