m8nyloc wrote:Hi mate and thanks for the info. what is the max it will rev up to?.
Any thoughts as to what is causing my problem with my motor as I am at a loss.

My bike revs to I think about 11.5-12K. Sorry, but I am by no means a mechanic and unfortunately cannot help you with properly diagnosing your issue.
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1993 NSR MC21 SE 1990 NSR MC21 SP