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Thread: Impeller adjustment

  1. #1
    Moderator AKmud's Avatar
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    Oct 2005
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    Wasilla, Alaska, United States
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    Default Impeller adjustment

    What method do you guys use to tune your outboard jet unit impellers? I have a jetted Johnson 40hp that I have not adjusted since I got it 6 years ago. This year it doesn't seem like I am getting the power I should out of it. Any suggestions?
    AKmud
    http://i78.photobucket.com/albums/j96/AKmud/213700RMK1-1.jpg


    The porcupine is a peacful animal yet God still thought it necessary to give him quills....

  2. #2
    Member
    Join Date
    Apr 2006
    Location
    Anchorage
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    39

    Default shim the impeller

    Try moving some of the shims from the front of the impeller to the back until it fits snug in the bowl.

  3. #3

    Default

    AK,
    Try this site It is called (getting to know your outboard jet). Just do a google search. I tried to post the link but it would not let me. It shows you all you need to know.

  4. #4

  5. #5
    Moderator AKmud's Avatar
    Join Date
    Oct 2005
    Location
    Wasilla, Alaska, United States
    Posts
    3,163

    Default Great site guys

    everything I wanted to know. Thanks!
    AKmud
    http://i78.photobucket.com/albums/j96/AKmud/213700RMK1-1.jpg


    The porcupine is a peacful animal yet God still thought it necessary to give him quills....

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