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  1. #1
    pplusent's Avatar
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    No fuel in accelerator pump

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    I have an sl 900 and have had constant problems with my accelerator pump not filling with fuel from the carb. I tried three different carb sets and none of the pumps would fill.
    I have seen several people with similar problems and thought I would share the fix I came up with, So far it is working very well at keeping my pump full with no recovery time, the well is always full and ready for another shot.
    see attached, and feel free to ask questions.


  2. #2
    Rasta Mon Condoms We Be Jammin!!!!! TxVirageTx's Avatar
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    interesting.i'll post how my fix turns out by replacing the plastic check ball with a steel one.for any body who wants to do this fix i have several on the brass nozzles

  3. #3
    pplusent's Avatar
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    pressure has to build

    Quote Originally Posted by TxPro1200 View Post
    interesting.i'll post how my fix turns out by replacing the plastic check ball with a steel one.for any body who wants to do this fix i have several on the brass nozzles
    The only hitch to the fix is the return pressure is released when you refill the tank, or depressureize the system, but I found by the time I get through the no wake zone it's pressurized and working fine, even with a short no wake zone. Hope this works out for you, it a frustrating problem.

  4. #4
    Rasta Mon Condoms We Be Jammin!!!!! TxVirageTx's Avatar
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    just took my twin virage out for a spin with the steel check ball in place,no more accl problem,works just like new

  5. #5
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    Quote Originally Posted by TxPro1200 View Post
    just took my twin virage out for a spin with the steel check ball in place,no more accl problem,works just like new

    Steel balls..........

  6. #6
    Rasta Mon Condoms We Be Jammin!!!!! TxVirageTx's Avatar
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    i replaced the plastic check ball with steel inside the metering block for the accl pump,works great all y accl pump issues that i had with the tx and the franken keihins is now gone.

  7. #7
    She likes the bike. But the ski gets her wet!!!! xlint89's Avatar
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    Are you afraid of the steel rusting should you get water in the fuel?

  8. #8
    Rasta Mon Condoms We Be Jammin!!!!! TxVirageTx's Avatar
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    considering they're 10 year old carbs with only 30 hours on them that wouldn't work properly with the plastic ball and now work just peachy with a .38 cent STEEL ball??no not really.ride more worry less!!!never really gave it any thought,was just looking to see if thats where the issue really was,and it was.the brass plug CAN be pulled and a replacement ball inserted.i wanted steel bearing because if i figured it would be of a tighter tolerance for roundeness vs just some cheap plastic ball you could by,besides i did figure that maybe the ethanol might be whats causing the distortion of the plastic ball because the one that came out of it was certainly distorted.LIVE LONG FRANKEN KEIHINS!!!!!!

  9. #9
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    Maybe go for a stainless ball...

  10. #10
    She likes the bike. But the ski gets her wet!!!! xlint89's Avatar
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    That's what I'm kinda thinking.

    I know water isn't supposed to be inside there, but we've all seen rusted screws at some point in the Mikuni 38's.

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