98 KLX300R 1st gear noise under load

I just recieved a 98 KLX300R and it has not run for 3 years prior.  I cleaned it all up and got it running.  New air filter,changed the oil, new chain, new plug etc...after a few short rides and getting more comfortable with it, 1st gear under load make a real clunking noise just like the chain was slipping on the sprocket or something like that.  I made sure the chain was plenty tight and it really sounds like it is inside the case.  Any help would be appreciated.  What ever details you can provide to repair would be great.  Thanks,

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!


Register a new account

Sign in

Already have an account? Sign in here.


Sign In Now