Hello
I have 2000 warrior, when I ride for about an hour, I start getting a pretty strong vibration, feels like the front end, when I engage the clutch when gearing down or idling in gear with clutch engaged is when I feel it the most, it seems I can rest my foot on the shifter, or put little weight on it and the vibration will subside some, what could this be?

thanks

 

Check all of your motor mounts first.