I have a 2000 Big Bear 400 and it will only shift in Rev, Neutral and 1st. Any Ideas on what I need to do to fix it? Thanks in advanced.

 

I've moved this over to the Yamaha section to get you quicker replies.

 

Could be anything in the selector mechanism. However there was a common fault with the manual gearbox Yams, the star wheel used to come loose. It must be 8 years since I fixed one but, even the dealers used a "bodge" which involved heavy duty thread locker to keep it in place, rather than a complete strip down to replace the worn parts.