Bad grinding noise

[Dumb Country Boy]

Hello, I am the proud owner of a 1996 yamaha warrior 350 and ive had this thing for just a few months and i have loved it. However, just yesterday, my 350 starting acting up and all of a sudden it started grinding BADLY. I pulled off and started it back up and it was completely fine, I took off and it started grinding again. I have noticed it only grinds whenever I am going up any hill or when i am fully on the throttle and sometimes taking off.

Can someone please help me find this issue, I love this 4 wheeler and I hate seeing it not riden

Thank you very much

 

[Roger]

Sounds like a bolt has backed out, maybe clutch bolt or one way bearing bolt? I wouldn't run it until you find out