I have a 1999 Yamaha Warrior (wife's quad), and I am currently having problems shifting into 2nd gear from 1st gear. It will shift into second gear when the clutch is barely engaged (slipping the clutch), then from 2nd gear though 6th gear shifts ok. When clutch is fully engaged it will not shift. I would appreciate any recomendations on how to fix this problem.

Thanks
Tim