Motorcycle Questions? Ask a Mechanic.
Hi and welcome to JustAnswer,Thank you for the question and your patience. Should you still need assistance for information purposes only...Initially, confirm that it is indeed an RPM limiter issue and not combustion. Let's review the basics. Proposed preliminary tries (if have not been done):
There is no actual separate RPM / rev limiter. It has a circuit that specifies max fail safe RPM and built-in into the CDI as part of its overall design. This model has a REVerse limiter and can be bypassed by a push on the over ride (yellow) button in reverse to get full power.