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  1. #1

    Default 1989 85 hp won't go over 25mph on my bass boat

    I have an 85 hp force with no tac hooked up. It's got a 13x17 prop and I only go about 25mph. I know this is way too slow for this motor and was wondering is anybody's had this problem. Thanks in advance.

  2. #2
    Join Date
    May 2010
    Location
    Sebastian ,Fl
    Posts
    2,402

    Default Re: 1989 85 hp won't go over 25mph on my bass boat

    GPS or the speedo on the boat?
    The pitot tube on the back of the boat, is it down in the water flow?
    Is the tip broken off of the pickup?

    [email protected]? or manual tilt?


    Compression test? Spark test?

    How big is the boat?
    Load?
    88 Bayliner with 2002 225 HP Mercury EFI

    Buy American made Cars and Trucks!!!Towing insurance for a boat,a GREAT thing.
    ​Tools to make my life easier: Battery tester, die grinder, temp.gun, compression tester, DVA meter.

    In Scenic , Beautiful San Sebastian by the sea Florida

  3. #3

    Default Re: 1989 85 hp won't go over 25mph on my bass boat

    I got 24mph using the GPS on my phone. I have tilt and trim.
    The boat weighs 1000lbs unloaded. I'll try the spark and compression and get back with ya.

  4. #4

    Default Re: 1989 85 hp won't go over 25mph on my bass boat

    Found out I wasn't getting WOT. Found this video on the form. It was a huge help. Made some carb adjustment, problem solved.

    https://www.youtube.com/watch?v=tDoR...ature=youtu.be

  5. #5
    Join Date
    May 2010
    Location
    Sebastian ,Fl
    Posts
    2,402

    Default Re: 1989 85 hp won't go over 25mph on my bass boat

    Glad it's fixed.
    That video was posted by FrankA
    Frank was one of the best Force/Chrysler mechanics out there.
    RIP Frank.
    Frank posted on iboatsdotcom in the Force forum, I met him there back in 08 when I joined that forum.
    88 Bayliner with 2002 225 HP Mercury EFI

    Buy American made Cars and Trucks!!!Towing insurance for a boat,a GREAT thing.
    ​Tools to make my life easier: Battery tester, die grinder, temp.gun, compression tester, DVA meter.

    In Scenic , Beautiful San Sebastian by the sea Florida

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