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  1. 05-12-2013, 09:19 PM #1
    Titan423
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    2003 Yami Vmax 200 3.1

    Had this motor rebuilt about 4 months ago. Overheats every time you come in when at idle. Replaced the impeller and no difference. Never did this until it was rebuilt. Any ideas?
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  2. Rich Z
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    #2 05-12-2013, 09:28 PM
    Debris in pressure release valve. Its partially open. Clean or replace with a new style mushroom head valve, like the one in a 3.3L hpdi.
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  3. blownbayou
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    #3 05-13-2013, 01:58 PM
    ^^ What he said Poppet valve

    2001 202 Special Edition Blazer w/ 2001 225 OX66 Yamaha, 26.5P Tempest@2" below the pad.... 77mph w/ full tanks, passenger and gear
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  4. Titan423
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    #4 05-13-2013, 06:42 PM
    I have already replaced it when I had it rebuilt. So you think it clogged up? We will check it this weekend.
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  5. Titan423
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    #5 05-13-2013, 06:42 PM
    Also it has the newer style mushroom head in it.
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  6. Titan423
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    #6 05-19-2013, 05:43 PM
    Okay guys removed the poppet valve and no debris. Any other suuguestions??? Help please.
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  7. blownbayou
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    #7 05-19-2013, 08:22 PM
    water pick up tube might be cracked?????

    2001 202 Special Edition Blazer w/ 2001 225 OX66 Yamaha, 26.5P Tempest@2" below the pad.... 77mph w/ full tanks, passenger and gear
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  8. mdtritn21
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    #8 05-20-2013, 04:15 PM
    Did you replace just the impeller or put a complete water pump kit in.
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  9. Titan423
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    #9 05-20-2013, 08:47 PM
    Just the impeller. I thought the housing might be bad. ?
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  10. dcaler
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    #10 06-15-2018, 05:43 AM
    did you fix this? I have the same problem on vmax hpdi 175hp
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  11. javelin90
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    #11 06-15-2018, 07:40 AM
    Check the rubber o-ring where it slides up onto the tube inside the lower unit housing.
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