ok first of all if any one could help it would be lots of help but heres my probem my 2003 polaris trailboss 330 2wd runs like a top and it might have 20 hours on the machine and is always well maintained. about 3 weeks ago i went on a poker run at demon run in howard ny great trails great time but ever sense my machine is makeing a clicking noise frome the transmission area on the sprocket side. any ideas becuse i realy like doing my own work on my own machine becuse then i know its done right so thanks

 

First I would check tension on chain and also if front sprocket is ok and doesn't have worn or chipped teeth. I always adjusted to where the slack was about 1/2"-to max of 3/4" slack at the top middle of chain between front and rear sprockets.(since concentric drive came out about 1996-98? ,the front sprocket and swing arm pivot are level with each other which allows tighter chain clearances and suspension doesn't affect chain as much as previous models, DISREGARD the old method of collapsing rear end to adjust chain,WILL be too loose!) Couple other things to check is the chain guide,must be able to move and pivot along with chain or could make noise. Last thing I would jack up rear,turn rear wheels and see if chain has any tight or loose spots as you turn.If it does,could be time for a new chain (shouldn't with 20 hrs as you say?). Plus don't let the chain get dry,keep it well lubricated Hope this helps OPT

 

I have to agree with OPT. My Mom has the exact same quad, and when the chain had slack, it made a terrible clicking noise as the chain seemed to catch on the plastic guide. After I adjusted the chain, she was happy.

 

I have the same bike and had the same clicking noise, the chain was dry and after i lubed it i never heard the noise again.