701 will not idle
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  1. #1
    PWCToday Newbie
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    701 will not idle

    I have a 701 that all of a sudden decided not to idle. It starts right up and throttle response is great. It shuts down as soon as I pull the safety lanyard. I checked idle screw and made sure the throttle butterfly are closed. I did a pressure test and found a very slight air leak so I tore the motor apart and installed new crank seals and gaskets. It started up with no difficulty but still does not idle. I decided to rebuild the carb, but there was no change. Could there be a problem with the CDI? What else should I check?

  2. #2
    PWCToday.com Is My Home Away From Home fox river pwc's Avatar
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    Re: 701 will not idle

    What is the current setting on the low speed screw?


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  3. #3
    PWCToday.com Is My Home Away From Home john zigler's Avatar
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    Re: 701 will not idle

    Throttle plate should NOT be fully closed. What happens when you turn the idle stop screw up some?
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  4. #4
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    Re: 701 will not idle

    Sorry for not replying to your help, life got in the way.
    The engine starts easily, but revs way to high, whether in the water or out. I have adjusted the idle screw without any change. I also adjusted the low speed screw without any change. The low speed screw is an 1-1/4 turns open. I have rebuilt the carb thinking possibly a check valve had failed. However, that did not change the high speed startup. I also, performed a pressure test to verify there wasn't an air leak. I have started the engine and placed my hand over the carb opening, covering 75% of the carb, and was able to slow the engine down. I'm not sure what that tells me.
    I'm at a loss what to check next.

  5. #5
    PWCToday.com Is My Home Away From Home fox river pwc's Avatar
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    Re: 701 will not idle

    Low speed screw on a single carb 61x needs to be a minimum of 1 3/4 turns out from closed. They typically don't need more than 2 1/2 turns out from closed.


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  6. #6
    PWCToday Newbie
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    Re: 701 will not idle

    Thank you. I will adjust the low speed screw and give it a try

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