WONT REV ABOVE 3500 RPM

Check fuel and air filters, then fuel pump for correct pressure.

In park, this could be normal. ECU does this. around 2800 to 3500 RPMs. If driving, have the codes read. No codes , could be a clogged fuel filter, bad fuel pump(have the pressure checked), or clogged catalytic converter/s. With no codes, something is restricted..

I have a few questions for you. 1. Have you owned the bike since it was new? 2. Have you been able to rev beyond 3500 rpm prior?

Sounds like a broken cable to the throttle body.

Check that both cables are intact.

Have you adjusted the valves correctly? if they are too tight it will cause this sort of problem.

hi ,
your timing is out and needs to be checked and re-adjusted .
If the bike gets hot very fast and lacks of pwer its only due to timing.

It wont rev past 3500 in driving?
The governer on these is set to NOT allow a higher rev when car is stopped and not in gear.
Try to change oil viscosity or filter manufacturer.Some filter manufactures put in a bypass valve that kicks in too early.

Have you checked if the EXUP valve is working? It should cycle when you turn the ignition on.
If it's stuck in the closed position it will be choking the engine in the way you describe