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  1. #1

    Default 1991 yamaha 150 rpms limited to 2000

    Somebody did some repairs to my boat. Now that I have it back the engine runs great but the rpms are limited to somewhere around 2000 rpms. After the problem started, i noticed the tach and the oil pressure sensor are both off. Does anybody know of the best place to start looking for the problem (such as a bad ground wire around the tach).

  2. #2
    Supreme Mariner
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    Default Re: 1991 yamaha 150 rpms limited to 2000

    91 150? you dont have any oil pressure indicates.
    what tach are you running and have you tested the audible alarm ?

  3. #3
    Captain JUSTINTIME's Avatar
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    Default Re: 1991 yamaha 150 rpms limited to 2000

    you have oil in the tank?
    HUMAN BUILT = HUMAN FIXED
    CERTIFIED MARINE TECH

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