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  1. #1
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    1990 Johnson GT200

    Im looking to buy a boat with this motor does anyone know anything about it?


    Specificly what the compression should be as they will do a compression test in front of me because it is to cold to test drive it?

  2. SC Club Moderator ChampioNman's Avatar
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    May 2004
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    #2

    Re: 1990 Johnson GT200 (rex_1_mn)

    Good motor 2.7 Liter anywhere between 90-100 would be acceptable. Biggest thing is you want them all to be within 15% of each other. BTW welcome to the boards.

  3. Member
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    granbury
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    #3

    Re: 1990 Johnson GT200 (ChampioNman)

    Actually the 2.7 were 86' and 87' went to 3.0 in 88'. 90-100 is correct.

  4. Member
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    #4

    Re: 1990 Johnson GT200 (dnyhuf)

    Is it a good motor anything to watch for or change right away?

    thanks

  5. Member
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    granbury
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    #5

    Re: 1990 Johnson GT200 (rex_1_mn)

    If the motor has been maintained correctly, you will get many more years of service from it. They have plenty of low-mid torque. Get a service manual, it will pay for it self very quickly. Great motors. Recommended RPM is 5000-6000, prop for 5800-6000 and it will live longer, especially with todays fuels.

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