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  1. #1

    Join Date
    Jun 2012
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    Fort Leonard Wood, MO
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    10

    97 yamaha wave raider water streams

    On my 97 wave raider i have 2 exit holes for the water from the pump. My 91 yamaha vrx 650 shoots the water out of the back into the air. My 97 750 has 2 exit holes one on left side and one in rear, the one in rear doesnt spray water but like 6 inches off the floor and the one on side sprays far, any ideas why and can i make one on back shoot higher without harming ski??


  2. #2
    Old Ski Insanity w/rpm500's Avatar
    Join Date
    Aug 2005
    Location
    Crystal River Fl
    Posts
    2,208
    the one on the back is a safety device Yamaha builds into skis..it shoots water from the jet pump into the air to show others that basiclly your a YAMAHA ski... (most remove it entirely to gain back the thrust it bleads off the jet).to shoot higher you will have to addres a blockage prob at the bowl where the tell-tail hose connects...At Idle this is not a very tall jet of water ,at speed it should shoot up like a small water cannon!!

    The other to the side is your pisser..it returns water the engine has heated from mainly the head & cyliner block and dumps it overboard...that it shoots far is an indication you have good flow thru the block ,but make sure that you also have good flow out the exhaust .

  3. #3

    Join Date
    Jun 2012
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    Fort Leonard Wood, MO
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    10
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