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  1. #1

    Default Low RPM. Can't get up to full speed

    I had Hell's Caynon Marine build me a 22 feet jet boat in December 2013. It has a Marine Power 6.2l LS3 with a Hamilton pump jet. Full speed is about 55mph, until recently. I run the boat in salt water in northern British Columbia on the Portland Canel by Alaska. There is 344 hours on the engine. Engine was running great, I turned it off after running about 25 miles down the canel and when I started it back up it would only do about 30mph and the rpm's were at only 3800. Engine runs great just no power/rpm's. anyone else have this problem?

  2. #2
    Join Date
    Sep 2008
    Location
    Maryland - USA
    Posts
    6,826

    Default Re: Low RPM. Can't get up to full speed

    check the fuel pressure in the rail.....

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