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  1. #1

    Kawasaki 750 st...starts up but wants to rev and will not idle

    I HAVE FUEL TO THE CARB NOW AND IT STARTS WITHOUT ADDING FUEL TO CARB BUT IT WANTS TO REV UP? I REPLACED THE CARB BASE GASKET TO MAKK SURE ITS SEALED AND WAS NOT DRAWING ANY AIR BUT THE PROBLEM PERSISTS. IT JUST WILL NOT IDLE. I HAVE NOT REMOVED THE INTAKE MANIFOLD SO I DON'T THINK ITS DRAWING ANY AIR THERE, ANY SUGGESTIONS? I NOTICED THAT THERE IS SUPPOSED TO BE A CHECK VALVE BETWEEN THE TANK AND SEPARATOR BUT WHO EVER HAD IT BEFORE REPLACED IT WITH A FUEL FILTER. would THIS CAUSE THE PROBLEM?


    THANKS FOR THE HELP


  2. #2
    steve45's Avatar
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    If it revs up, look for a sticking throttle (hope for a sticking throttle, actually).

    If not, you may have a leak on the rear seal

  3. #3
    Throttle is correct however I tore down the carb and noticed that the needle side had a rip in the diaphragm. I did not notice this the first time...might this be the problem?

    Thanks

  4. #4
    steve45's Avatar
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    Maybe. Not sure if that would make it run lean or rich.

  5. #5

    1994 kawasaki 750 st no fuel

    I wanted to let those that have a similar problem that after replacing fuel lines, carb rebuild and fuel tank and selector cleanout I found the problem. It was the needle valve being set too low. It should be level with the base of the carb, mine was not opening and I don't know how it got that way but once I properly adjusted the needle if fired up and runs sweet on the trailer. How its the same in Mexico..

    Thanks for all the help!!

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