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  1. #1

    Default 1997 150 johnson fast strike

    1997 johnson 150 fast strike run great for 20 30 miniutes then after sitting 30 miniutes it starts but will not go more than 2200 rpm every so often it will rev up for a second sometimes 3 to 5 seconds it has completely shut down a time or 2

  2. #2
    Join Date
    Apr 2010
    Posts
    3,691

    Default Re: 1997 150 johnson fast strike

    What happens if you hit the choke when this acts up ??

  3. #3

    Default Re: 1997 150 johnson fast strike

    Quote Originally Posted by Boobie View Post
    What happens if you hit the choke when this acts up ??

    The motor bogged down , almost died then stayed about 2200 rpm

  4. #4
    Join Date
    Apr 2010
    Posts
    3,691

    Default Re: 1997 150 johnson fast strike

    Then try doing a cylinder drop test on it when it's acting up to find what cylinders are acting up.

  5. #5
    Join Date
    Nov 2011
    Location
    tennessee
    Posts
    2,619

    Default Re: 1997 150 johnson fast strike

    Disconnect the heat sensors on head and test. as it may be going into slow...
    Pappys Sales and Service
    Owner and Factory Certified Technician
    Former racer KDBA (Kentucky Drag Boat Association)

  6. #6

    Default Re: 1997 150 johnson fast strike

    Heat sensor checks out good
    seems to run fine when the shift switch is not installed it is plugged in and grounded just not stabbed into position
    while in position i have no spark left side (harbor) runs good when leaving the dock then it seems to go into limp mode While on the water I removed the shift switch seems to be running good.

  7. #7
    Join Date
    Nov 2011
    Location
    tennessee
    Posts
    2,619

    Default Re: 1997 150 johnson fast strike

    Shift cable out of adjustment or shift rod binding triggering shift switch
    Pappys Sales and Service
    Owner and Factory Certified Technician
    Former racer KDBA (Kentucky Drag Boat Association)

  8. #8

    Default Re: 1997 150 johnson fast strike

    Thanks for all the advice

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