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  1. #1

    Default 2000 Johnson 9.9 half choke

    I have a 2000 Johnson 9.9. When I launch the boat and I put it in gear to go I have to keep it about half choke to keep it running at full throttle. It has probably about half power when at full throttle. I have new fuel, new plugs, sprayed carburetor cleaner in it. Any ideas on what to check next??


  2. #2
    Join Date
    Apr 2010
    Posts
    4,857

    Default Re: 2000 Johnson 9.9 half choke

    Do a compression check, check your spark with a spark tester and then clean the carb.

  3. #3
    Join Date
    Sep 2010
    Posts
    19,802

    Default Re: 2000 Johnson 9.9 half choke

    Spraying carburetor cleaner into the carburetor throat does NOT CLEAN the metering circuits.----You need to take the carburetor apart for cleaning.----Not hard to do at all !

  4. #4

    Default Re: 2000 Johnson 9.9 half choke

    Will do a deeper dive, would you recommend purchasing a carburetor kit or just take it apart and do a deep clean

  5. #5
    Join Date
    Apr 2010
    Posts
    4,857

    Default Re: 2000 Johnson 9.9 half choke

    Get a carb kit !!

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