I have a 2001 500 HO. It was running around 58 mph when i bought it. I got it stuck one day and ran it hard getting it out. It will now run about 49 mph. I changed the belt with no luck. Any ideas on what to check. Compression checks out at 75. It has strong low-end, it just won't reach top speed.

 

Is engine reving really high at 49mph, if so, clutches may not be going into high gear

 

I BELIEVE IT IS RUNNING AT FULL RPM. I CAN NOT GET A TACH TO CHECK RPM. WHAT DO I NEED TO CHECK ON THE CLUTCH. SPRING, BUSHINGS, OR ANYTHING ELSE?

THANKS.