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  1. #1
    DRC 4 LIFE TheDome's Avatar
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    Gas valve question

    I am in the process of making sure that my gas valves are functioning properly. I have not touched them yet but I noticed that the red caps on all three of them are not screwed in the same amount. If I understand correctly the procedure for testing and adjustment, it says get rpm at wot then take caps off get rpm at wot, if higher without caps adjust 1/4 turn until rpm is same without caps on. If this is the case shouldnt all of the caps be screwed in approx. the same amount. If not which do you adjust first, second, third etc...?


  2. #2
    Happily Self-Employed WFO's Avatar
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    It may be decieving because the front cap is shorter, for pipe clearance. Note your rpms at WOT. Pull the caps off and try again.

    I usually run all them down till they stop and come out 1 1/2 turns for a starting point. Make a mark on the covers and red caps with a sharpe for a reference.

  3. #3
    Moderator OsideBill's Avatar
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    I have all three of mine set to the same height to start with. on #3 and #2 I used the top of the un modified caps to start with and Measured them and used the measurement to set #1 the same height. #1 cap is cut shorter to clear the pipe.

    Adjusting the spring pressure affects when the valve opens. screw it in opens later takes more pressure screw it out opens sooner. There are also different springs made for the SeaDoo valve to give even a greater variety of adjustment. Seems most of the GPR guys prefer the Red springs.
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  4. #4
    DRC 4 LIFE TheDome's Avatar
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    thank you

    Thanks WFO and Bill, very helpful information. That is exactly what I needed to know..
    Todd

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