My 2001 Yamaha xlt won't turn but 6000 rpm and go 44 mph. shouldn't it be faster? If so what might be wrong with it?

Allen, July 2007

If it was running okay in the past, you probably have either a plugged fuel filter, worn fuel pump diaphragm, or damaged power valve (in that sequence of liklihood).

Check your fuel filter and run a compression test. You should see at least 135 psi on the compression. If you do, I'd lean toward a carb rebuild. If you don't.....power valve.

SRM, August 2008

Make sure your throttle cable is adjusted properly, you may also check your revlimiter adjustment.

Scott, July 2007