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Thread: Yamaha 2004, 4 stroke

  1. #1
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    Default Yamaha 2004, 4 stroke


    Motor is always very hard to start, but once running, it's great,
    Until I stop for 10 minutes, then it's got no gas and the prime ball is soft.
    Air leak in the fuel line?
    carbs draining for some reason?

    new plugs,
    oil,
    carbs seem ok but may be dirty, runs well once going

    thanks
    brettw
    G3PO

  2. #2
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    "Air leak in the fuel line?"quote brettw more than likely, or valves gone bad in bulb. I'd replace the whole line and bulb.
    smiles are contagious, spread them around
    Proud Member of the ZIPPER Club
    & Team Geezer

  3. #3
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    Cray is offline Crappie.com 2019 Man of Year, Supermod & Moderator of the Mechanics Forum * Crappie.com Supporter
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    Brett, mine did that and I replaced the bulb with a new Mercury bulb. Also like WB said check for air leak. Pump bulb up real hard and check for any spots where fuel could be leaking out. Especially around the connection at the motor.
    Proud Member of Team Geezer
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  4. #4
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    Pumped it up like mad, no leaks, studied rubber washer, in tact,
    got it mounted vertically now, will see what happens
    G3PO

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