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Starting 25 hp 4 stroke

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  • Starting 25 hp 4 stroke

    Bought 25 hp 4 stroke 2002 yamaha. When starting in driveway, I have to remove cover and put hand over the air intake screen. What is happening?

  • #2
    It takes air/fuel/ignition to start a motor. It sounds like you have a compression problem. Could be a stuck valve, pull the head off or a sticky carb jet that is preventing fuel from mixing with air. Sorry no magic answer.

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