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  1. #1
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    what are normal water pressure numbers for a 2003 ZX225 with 225 HPDI?

    I'm going to check my numbers this weekend and wanted to know what are good numbers for water pressure at 1/2 throttle and wot? I keep my jackplate set pretty low (only jacked up about 1 inch)
    2013 Skeeter MX1825 with Yammy F150 & Garmin Ultra 106sv & LVS34 Livescope

    "My hotfoot pedal goes to 11"

  2. Member
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    #2

    Re: what are normal water pressure numbers for a 2003 ... (skeetzx225)

    My mechanic recently told me that he likes to see close to 20 PSI at WOT for my 05' 225 HPDI. He is very well respected and has been in the boat racing business with Yamaha for quite some time. I had to have an impeller changed because I accumulated some debris in there. There are numerous issues that can affect water pressure.

  3. Member
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    #3

    Re: what are normal water pressure numbers for a 2003 ... (clat225)

    gah! my wot was 6-7 PSI and the needle never moves off 0 when idling, should I be worried and get this fixed asap?
    2013 Skeeter MX1825 with Yammy F150 & Garmin Ultra 106sv & LVS34 Livescope

    "My hotfoot pedal goes to 11"

  4. Member
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    Calhoun, La.
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    #4

    Re: what are normal water pressure numbers for a 2003 ... (skeetzx225)

    Yes...12psi is the absolute minimum suggested for WOT. 15# is preferred.
    Could be a bad gauge too. Might get that checked too.
    Zero at idle is not uncommon, and nothing to worry about.



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