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HELP!!! Fuel pump is not Priming!!!

Discussion in 'Mechanics Garage' started by CandyRedRC46, Aug 13, 2011.

  1. CandyRedRC46

    CandyRedRC46 Member

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    the bike was running fine yesterday. then i went for a ride all day. but when i went to pull into my drive way last night the engine cut out. i have not been able to restart it since, all day today.
    the kill switch is in the run position. ive checked all the fuses i can find. i checked the connections to the fuel pump. i pulled the upper cowling off and tried swapping out the "engine shut off relay" and also the "fuel cut relay". i still need to check the bank angle sensor and also see if the fuel pump is getting power, and if the pump itself is okay. the FI light does come on and off when i flip the kill switch, and also when i pull the engine stop relay. i guess im supposed to check the ecm , power and grounds, but im not really sure how to go about doing this.
    i really need a hand here. i would really appreciate any advice.
     


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  2. 02 VFR Rider

    02 VFR Rider New Member

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    so I take it you can not hear the fuel pump come on when you turn on the ignition?
    try to jump the connection off the batt.
     


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  3. rccaulfield

    rccaulfield New Member

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    U sure the extra fuse for the fuel pump/injection sysytem didn't go? Its out on its beside battery iirc!
     


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  4. CandyRedRC46

    CandyRedRC46 Member

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    yeah i cant hear the fuel pump turn on when i i put the ignition in the on position. im going to try an jump the pump to make sure the pump is still good. ive checked the couple fuses right next to the battery and the fuse box under the throttle grips. thanks guys.
     


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  5. 02 VFR Rider

    02 VFR Rider New Member

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    it turns over fine, yes? just no pump?
     


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  6. CandyRedRC46

    CandyRedRC46 Member

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    yup thats exactly it
     


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  7. CandyRedRC46

    CandyRedRC46 Member

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    well turns out i found the problem.
    if you pull your left hand side fairing off, there are 2 wire harness connections. one is blue and one is grey.
    the blue one was bad. i found it by leaving the key in the ON position and playing with every connection i could find.
    when i got to the blue one (its an 18 pin connection!) i disconnected it and when i reinserted it the fuel pump primed.
    what pisses me off the most, is in January i went through all my connections and packed them full of dielectric grease, which apparently doesnt do shit.
    either that or i have a bad wire or pin in that connection.
    anyways i cleaned it out as best as i could, but it will still shut off if i jiggle the connection.
    i went for a short ride around in circles in front of my house.( i dont want to get stranded in the hood in orlando at midnight) and it never shut off, but im not to comfortable with long rides at this point.
     


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  8. Pliskin

    Pliskin New Member

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    Well at least you found the problem. We've all cursed the electrical issues on these bikes from the beginning, so no surprise there.

    You live in Key West. What the hell are you doing in Orlando? At midnight? In the hood?
     


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  9. 02 VFR Rider

    02 VFR Rider New Member

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    glad to hear the problem is solved :thumbsup:
     


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  10. CandyRedRC46

    CandyRedRC46 Member

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    i moved up here last year to goto UCF just havent gotten around to changing the profile.
    but the problem isnt really solved. it hasnt cut out on me since, but it still will cut if i jigle the connection.
     


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  11. Pliskin

    Pliskin New Member

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    What happens if you wiggle it?

    Wiggle It - 2 In A Room - YouTube

    :biggrin:

    But seriously - at least you KNOW where the problem is, even if you haven't fixed it.
     


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  12. CandyRedRC46

    CandyRedRC46 Member

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