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  1. #1
    Member
    Join Date
    Jan 2007
    Location
    Duson, LA
    Posts
    57

    Sho Water Pressure

    When I am running, I noticed that the the water coming out of the pisser is not strong at all. My water pressure is fine on the gauge. I noticed yesterday on my buddy's hpdi that it was a lot stronger coming out. Any suggestions.

  2. Banned
    Join Date
    Jan 2011
    Location
    Sylvania, GA
    Posts
    1,256
    #2

    Re: Sho Water Pressure (wesmo)

    my 225 has been the same way since i bought it . Everyone says its normal and i have a hyd jackplate and run it deep mid and high ranges and also the same out the pee hole

  3. Member jwcfbd's Avatar
    Join Date
    Apr 2011
    Location
    DFW area TX
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    1,001
    #3
    That's normal for the SHO. My 200 is the same way and I'm running 18-20 psi.


    ---------------------------------------
    2011 Skeeter ZX200 w/SHO 200.

  4. Member
    Join Date
    Jun 2004
    Location
    Water Valley, MS
    Posts
    972
    #4

    Re: (jwcfbd)

    Mine does the same thing, it must be normal

  5. Member berger1b's Avatar
    Join Date
    Sep 2011
    Location
    Coldspring, Tx
    Posts
    1,495
    #5

    Re: (JRBjr)

    Same here on a 250 SHO. I questioned my mechanic and he said this is normal.
    Bernard
    2012 Pheonix 921 - Yamaha 250 SHO

  6. Member
    Join Date
    Aug 2010
    Location
    Tampa
    Posts
    971
    #6

    Re: (berger1b)

    normal to trickle at speed... 16 psi wot here
    2022 Xpress H18

  7. Member
    Join Date
    Mar 2005
    Location
    Montgomery, TX 77356
    Posts
    2,481
    #7

    Re: Sho Water Pressure (wesmo)

    The pilot hole is like a bypass to ensure water flow through the engine when rpm's are low and the normal water flow through the exhaust is restricted by the water at the exhaust. Once rpm's are increased enough that normal water flow patterns are good, the pilot hole is not an issue for cooling. However, at idle speeds, ensure that this water is flowing and is not too hot.

    Here's a diagram of the cooling system:




  8. Member iron banks's Avatar
    Join Date
    Apr 2007
    Location
    Metairie, LA
    Posts
    7,256
    #8

    Re: Sho Water Pressure (falcooon)

    I have a f250 on a bay boat. The water has trickled out since day one. Around 300 hours and no problems

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