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  1. #1
    PWCToday Regular
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    Pop off PSI for 97 900 ZXI

    Anyone know the pressure for a 97 zxi 900?

  2. #2
    PWCToday Newbie barlosbhz's Avatar
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    Re: Pop off PSI for 97 900 ZXI

    31 psi on the 3 needles. I changed my 3 needles and put new 1.6. I got this measurement and skiing is working perfect.This one with standard pistons.

  3. #3
    PWCToday Regular
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    Re: Pop off PSI for 97 900 ZXI

    I ended up lower. I think it was 26 PSI.
    I am only on the second tank of gas after the rebuild.

    I noticed that the bottom end and top end bog a little. I am still running premix along with the injection. I was going to wait until I was running straight gas and new plugs before I try tuning but now I am so what concerned it is the pop off pressure.

  4. #4
    Frequent Poster a1cnc's Avatar
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    Jun 2017
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    NH
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    Re: Pop off PSI for 97 900 ZXI

    I screwed with my pop off pressure ALOT this season. Lower higher right in zee middle. My bottom end bog I cured eventually with richer pilots and leaner screw setting and a pop off ~25-32 psi. Top end bog would be controlled by main jet. It depends on if it's rich or lean.
    Can you describe what it does?
    1998 ZXI 1100 Red
    1994 Polaris SL750 $50 I couldn't help myself!

    I suffer from JOCD!
    Jet-ski Obsessive compulsive disorder

  5. #5
    Frequent Poster a1cnc's Avatar
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    Re: Pop off PSI for 97 900 ZXI

    BTW, Where are you riding? I am looking for someone to ride with.
    1998 ZXI 1100 Red
    1994 Polaris SL750 $50 I couldn't help myself!

    I suffer from JOCD!
    Jet-ski Obsessive compulsive disorder

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