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  1. #1
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    Jet size 225 JOHNSON

    m-j225hpleen
    s -g04659907
    1999 johnson 225

    took the high speed jet of of carb on #2 cly stamped # was a 76d do i need to go up 2 sizes on this jet? I took them all out and there all 76d

  2. HYDRA SPORT LS205 225HO JER-1 BIG BASS's Avatar
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    Mar 2011
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    #2

    Re: Jet size 225 JOHNSON (greenback)

    I beleive you go up to a 78 on the number 2 cylinder ,I have one just havn,'t put it in yet.
    BIG BASS

  3. SC Club Moderator ChampioNman's Avatar
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    #3

    Re: Jet size 225 JOHNSON (JER-1 BIG BASS)

    Make sure you install it in the proper carb.

  4. Member
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    #4

    Re: Jet size 225 JOHNSON (ChampioNman)

    it's the 1 on the top left i think slightly lower than the top right carb is this right?

  5. Member
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    Murfreesboro
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    #5

    Re: Jet size 225 JOHNSON (greenback)

    have always wanted to ask....why do you change #2 jet? I've seen it posted a few times that on the bigger motors its recommended to do it. Why? and why just that cylinder/carb?
    Todd Savage
    '93 Javelin 363 FS
    '82 115 Johnson

  6. Member
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    Jun 2004
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    Fayetteville Tn.
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    #6

    Re: Jet size 225 JOHNSON (mtbdsavage)

    There is a cooling issue with the #2 cylinder on those era motors. The increase of jet size helps cool the cylinder.

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