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Pete, Technician
Category: Motorcycle
Satisfied Customers: 27898
Experience:  17 years automotive training and experience.
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I have a 2008 Kingpin with the stage 1 kit installed . bike

Customer Question

I have a 2008 Kingpin with the stage 1 kit installed . bike does not idle properly but does not die . will run Like normal at speed but when slowing down real slow like with throttle closed backfires, popping thought at first bad gas bad plugs oh an the black smoke not heavy but can see it if you watch . noticeable gas mileage drop . New plugs new gas no difference .And before I forget had dead battery last week but upgraded it to a new lithium one .Is it the TPS or something need reset or remapped after installing the new battery . I'm an old head but new to injection . I love my baby . just want to get this issue fixed . thanks in advance
Submitted: 2 years ago.
Category: Motorcycle
Expert:  Pete replied 2 years ago.
My name is ***** ***** I am a professional here at Just Answer. I noticed that your question was not getting a response and thought I would see if you still need help with this.I apologize for the delay and I hope I can still assist you with this here.
My info is limited on your model here but I see no one else has responded and thought I would see if I can help here.
If you haven't had the engine checked over for any vacuum leaks excess air will cause a lean condition and can cause this here.I would have this checked to see if any leaks are present needing corrected.
Thanks Pete
Customer: replied 2 years ago.
figured it out my self it turns out to be a bad TPS throttle post ion sensor . pain to change but has to be done .
Expert:  Pete replied 2 years ago.
That is great to hear.If you need anything else let me know.
Thanks Pete

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