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  1. #1
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    compression readings

    2004 j175 glsrm

    just had spring service and included was compression check. Mechanic was gone when i picked up the boat, so i didnt have tim eto talk to him...the readings are as follows:

    (2) 100.........(1) 100
    (4) 100.........(3) 100
    (6) 95 ..........(5) 95

    are these good numbers? what is normal compression for this motor new? i have no idea and have searched everywhere. thanks


    Modified by smalljaws at 9:48 PM 3/16/2010


    Modified by smalljaws at 9:50 PM 3/16/2010



    2004 Stratos 285 Magnum
    2004 Johnson 175 J175GLSRM

  2. SC Club Moderator ChampioNman's Avatar
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    #2

    Re: compression readings (smalljaws)

    Right on the money!

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    #3

    Re: compression readings (ChampioNman)



    THANK GOODNESS!!!! after reading it seems like everyone was saying compression was supposed to be 120 .....i guess not for this motor. Thanks for the reply Championman

  4. SC Club Moderator ChampioNman's Avatar
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    #4

    Re: compression readings (smalljaws)

    Compression testers vary in readings.

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    #5

    Re: compression readings (ChampioNman)

    gauges are all different

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    #6

    Re: compression readings (ccuboy123)

    Sorry to hijack but what kind of numbers should I have for a 2000 175 FICHT ?

  7. SC Club Moderator ChampioNman's Avatar
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    #7

    Re: compression readings (JohnnyG1)

    On that model anything over zero is good.

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    #8

    Re: compression readings (ChampioNman)


    1996 STRATOS 278 V
    1996 Intruder 150 HP
    Model 150GLEDB Serial # 04148601
    1991 335195 Heads
    FICHT Reed Cages
    Chris Carson Carbon Fiber Reeds
    Large Bore Carbs
    Prop Mark Croxton A45 15" X 23 Tempest
    Props Owned/Tested: 23 Renegade, 23 Renegade B&B, 22 Raker, 24 Raker, 24 Raker B&B, 26 Raker, 26 Raker II, 24 Raker II, 23 Tempest, 24 Tempest, 24 Fury, 24 Trophy, 25 Renegade, 27 Renegade, 23 Razor 3.

  9. Member
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    #9

    Re: compression readings (StratosDadRI)

    How about on my 99 Johnson 200 carb motor? I have never done a compression check but I am going to this spring just to see where it is at.
    2015 Ranger 1880 VS Angler
    2015 MERCURY 150HP
    (Model #:1150F23HD Serial #:2B135781)

  10. SC Club Moderator ChampioNman's Avatar
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    #10

    Re: compression readings (MNJAVELIN)

    <TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by MNJAVELIN &raquo;</TD></TR><TR><TD CLASS="quote">How about on my 99 Johnson 200 carb motor? I have never done a compression check but I am going to this spring just to see where it is at.</TD></TR></TABLE>

    Im gonna say over 100.

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    #11

    Re: compression readings (ChampioNman)

    Thanks Fred. Have a good one!!!
    2015 Ranger 1880 VS Angler
    2015 MERCURY 150HP
    (Model #:1150F23HD Serial #:2B135781)

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