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1999 Kawasaki Vulcan Nomad 1500 Keihin G432

Discussion in 'CVP Stage 1 Tuners Kit' started by Furfishfun, Oct 17, 2017.

  1. Furfishfun

    Furfishfun Member

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    Hi Guys,
    I have a 1999 Kawasaki Vulcan Nomad 1500 V-twin, with a Keihin G432 carb. It has Vance and Hines aftermarket pipes and a K&N air filter. The bike pretty much falls on its face in the pilot range of the throttle control. I have tried replacing the original pilot screw with the EZ adj. screw from CV Performance. I have tried adjusting it in the range of 2-3 turns out, without resolution. I would like to order the CV Performance Tuners kit, but I don't know if it will fit my bike. I have checked the website, emailed, and tried calling the company to verify that these parts will fit, but I have had no luck. I think that it is a 40mm carb, but I can't confirm, as it is still on the bike. I don't believe that the carb has been apart in almost 20 years, so I am also planning on buying an ultrasonic cleaner to get the varnish out. If anyone can confirm parts compatibility, or add any advice, please do so.

    Thanks
    Furfishfun, Oct 17, 2017
    #1
  3. kenfuzed

    kenfuzed Administrator Staff Member

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    Unfortunately the EZ-Just (mixture screw) is one of the few items shared between your carb and a Harley CV carburetor. Our tuners kit won't work.

    Chances are there is a clog in one of the air/fuel passages that travel between the mixture screw, pilot jet, and front air inlet hole. This is described on our troubleshooting page, even though its a different Keihin carburetor that internal circuit should be the same.
    https://cv-performance.com/harley-cv-carburetor-tuning-issues

    It could also be a crack or pin hole in the slide diaphragm, or a bad accelerator pump diaphragm.
    kenfuzed, Oct 17, 2017
    #2

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