Home Forums Shifter Karts Pump Around overflowing

This topic contains 7 replies, has 3 voices, and was last updated by  Carlos Perez 8 months, 1 week ago.

Viewing 8 posts - 1 through 8 (of 8 total)
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  • #15106

    Charles Stuart
    Participant

    I have a Kawasaki KDX200 shifter kart with a Keihin PWK 36 that has the pump around mod with the dual Mikuni round pumps.

    The system was overflowing pretty bad so I rebuilt the return pump but it is still happening. I had it running on the stand and I removed the tank cap I could see the fuel being returned but it obviously isn’t keeping up.

    Anything else I should try, any suggestions?

    Thanks

    #15114

    Gerry MCN
    Participant

    the return pick up is set to high or if it does it only when the tank cap is on the you are not venting enough air from the breather line on the tank

    #15119

    Charles Stuart
    Participant

    Thanks Gerry. The overflow happens with the tank cap on or off. I took the carb back off and have it on the workbench right now. I can tap the return pick up down but I’m not sure how far or where it should be. I’ve tried googling for pictures but no luck.

    #15166

    Gerry MCN
    Participant

    post a good pic of yours

    #15176

    Charles Stuart
    Participant

    (I already tapped it down a little bit but stopped when I realized I didn’t know exactly where it needed to be.)

    Thanks

    #15179

    Gerry MCN
    Participant

    return pickup is to low, but that is not that problem, try restricting the inlet,and you do have the vent tube plugged as seen here.

     

    http://eknclassic.com/viewtopic.php?t=78529&postdays=0&postorder=asc&highlight=inlet&start=30

     

     

    #15180

    Charles Stuart
    Participant

    My vent tube is not plugged and the inlet is not restricted. Ill see what I can do, thanks again.

    #16028

    Carlos Perez
    Participant

    I am a newbie in shifters and pump around, so it may not be the solution and I was lucky,  but I was experiencing the exact same problem and by changing the foam inside the carb did the trick. I have no more overflow…

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