QuestionQUESTION: has 63000 miles on it. has new fuel filter recently installed. At 45 to 55 it acts like it bucks, jumps, misses..but will fly full throttle..spark plugs are white and new..thought about efi piggyback system so i can control gas. has vance and hines exhaust and k&n filter..since 5000 mi. what do i need to see about?
ANSWER: Does your check engine light come on?
Mike
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QUESTION: No it does not. I have had no trouble with this machine since I have owned it except for this problem. I purchased brand new. It has always done this.
Thank you.
ANSWER: there are so many things that can be causing this its going to be hard to put a finger on it. First you would have to determine if its a fuel or an electrical problem. You could have an intermediate fuel pump problem or a throttle position senser. On the electrical side it could be the ECM itself. Not changing the timing. The bank angle senser could have a short.
I think, if it were me, I would take it in and have a diagnosis run un it. That is about the only way you are going to determine what the problem is
Good luck and happy riding
Mike
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QUESTION: took bike to H.D shop...said it was running to lean, but said they could tke care of it by putting on dyno for $885 including tax..still think i need piggyback efi fuel system!
AnswerFor the 885 they will be installing a download to your ECM. This is the same as installing a piggyback fuel system. You can buy and install your own a little cheaper, but without a dyno you dont know how well if functioning.
Good luck and happy riding
Mike
