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Thread: 2008 250 Pro XS

  1. #1

    Default 2008 250 Pro XS

    Was on the river today fishing a tournament and was loaded down with myself and the co. I was running in to beat the clock and had everything as it was running all day as far as trim and Jack plate. It would run 74 at 5800 rpm, but on my way in the tach was reading 6500, so I backed it down to 5800 and was only running around 55 mph. Could the tach be messed up? The motor runs fine.

  2. #2
    Join Date
    Sep 2010
    Location
    Jersey Shore
    Posts
    4,564

    Default Re: 2008 250 Pro XS

    Are you running an analog tach or a smartCraft tach?

    If analog, smack the tack with your knuckles and see if it jumps around.
    Chris
    Dockside Marine Services
    Jersey Shore.
    Mercruiser/Mercury Certified
    Let the insanity begin.

  3. #3

    Default Re: 2008 250 Pro XS

    Thanks Chris, it is analog and while running when I noticed it up to 6500-6800 I did try tapping it with no change or fluctuating.

  4. #4
    Join Date
    Sep 2010
    Location
    Jersey Shore
    Posts
    4,564

    Default Re: 2008 250 Pro XS

    Smack it harder....and see if it jumps around.
    Chris
    Dockside Marine Services
    Jersey Shore.
    Mercruiser/Mercury Certified
    Let the insanity begin.

  5. #5

    Default Re: 2008 250 Pro XS

    Ran out to garage and was smacking with the palm of my hand and didn't budge. No jumping or movement.

  6. #6

    Default Re: 2008 250 Pro XS

    Ran out to garage and was smacking with the palm of my hand and didn't budge. No jumping or movement.

  7. #7
    Join Date
    Sep 2010
    Location
    Jersey Shore
    Posts
    4,564

    Default Re: 2008 250 Pro XS

    Were you doing this while the engine was running?
    Chris
    Dockside Marine Services
    Jersey Shore.
    Mercruiser/Mercury Certified
    Let the insanity begin.

  8. #8

    Default Re: 2008 250 Pro XS

    Was running back to ramp and my hat blew off and boat was fine running 71-72 @ 5800 rpm, so I backed it down swung around to retrieve it. When I got back on it. Once I got it trimmed and running up to 70 is when I noticed the tach reading 6500. I had my trim exactly where it was before.

  9. #9

    Default Re: 2008 250 Pro XS

    Sorry, read your question wrong. No I didn't run the motor. Makes since I probably should have. I havnt had the boat very long and havnt bought a flush kit yet.

  10. #10
    Join Date
    Sep 2010
    Location
    Jersey Shore
    Posts
    4,564

    Default Re: 2008 250 Pro XS

    Check it when it is running.

    Upgrade to a Vessel View.
    Chris
    Dockside Marine Services
    Jersey Shore.
    Mercruiser/Mercury Certified
    Let the insanity begin.

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