My 1991 NT650 is completely stock with 28K miles. Especially when cold, but even a little when warm, this bike stumbles when the throttle is opened slowly. I don't detect a cylinder miss-fire but the power just isn't there. As I gradually increase the throttle there comes a point where the bike tries to spring out from under me. I guess I start getting good power from both cylinders at this moment and this is the expected performance for the now advanced throttle setting.
This is some sort of carburetion problem in my opinion. Any guesses?
Thanks!
This is some sort of carburetion problem in my opinion. Any guesses?
Thanks!
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