Walbro fuel pump mod - Kawasaki ZX-10R.net
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post #1 of 69 Old 07-21-2007, 02:49 PM Thread Starter
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Walbro fuel pump mod

I finally spent the time to make the walbro GSS342 pump work. Although it is not a direct bolt in it doesnt take a whole lot to make it work. After disassembling the pump you have to use a razor blade to remove the extra material on the inside of the rubber isolator at the bottom of the pump Next, using a razor blade and a file I had to remove the four tabs on the bottom of the pump.
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post #2 of 69 Old 07-21-2007, 02:54 PM Thread Starter
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then I had to shorten the regulator to make room for the wiring. Then I soldered up new wiring using spade connectors and eyelets and reassembled. Took bike for a ride and all is well.
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post #3 of 69 Old 07-21-2007, 04:27 PM
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Very goodly, did you check the flow ??
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post #4 of 69 Old 07-21-2007, 04:30 PM
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Vince, I have one question, did you buy the walbro with the in and out inline with each other or opposites ??The standard is inline and I was wondering wether the rubber gasket was inline with the relief hole.
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post #5 of 69 Old 07-21-2007, 05:43 PM Thread Starter
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Very goodly, did you check the flow ??
I did not check the flow because I dont have anything to do it with. I did have it at 13000 rpms at wide open throttle without missing a beat. They claim it flows 255L so I think it will be plenty for just about any zx-10 without a turbo.
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post #6 of 69 Old 07-21-2007, 05:45 PM Thread Starter
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Vince, I have one question, did you buy the walbro with the in and out inline with each other or opposites ??The standard is inline and I was wondering wether the rubber gasket was inline with the relief hole.
Yes its the straight through pump.(both inlet and outlet are inline not staggered) Which rubber gasket and relief hole are you refferring to?
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post #7 of 69 Old 07-21-2007, 06:18 PM
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There is a small relief vent on the bottom of the pump that lines up a hole on the rubber spacer, if you have the straight through pump , as you do, it lines up fine.
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post #8 of 69 Old 07-21-2007, 06:28 PM Thread Starter
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There is a small relief vent on the bottom of the pump that lines up a hole on the rubber spacer, if you have the straight through pump , as you do, it lines up fine.
The new walbro pump does not have that hole where the factory one does. I just took a look at it to make sure I didnt miss something.
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post #9 of 69 Old 07-21-2007, 06:50 PM
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Splendid.

It looks like a small pressure relief system for the pump, I havent disected the old one yet to have a look.
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post #10 of 69 Old 07-22-2007, 03:32 PM
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Nice job, glad it worked out for you. -Dean
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