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  1. #1
    Pwgsx's Avatar
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    Compression Test Adapter

    I have searched and searched but cannot find the correct info on what special adapter I need to test the compression on a 155hp 4tech motor. I did find 1 post about a 10mm adapter but after getting it it looks rather small. Is that the correct size? I don't have the ski at my house to check.


  2. #2
    Vman's Avatar
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    Pretty sure it's 12mm, but I'd have to check to be 100%...

  3. #3
    Having Fun jp1300r's Avatar
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    Its 12mm. Autozone or any parts store, I think has a whole compression testing kit with the correct adapter.

  4. #4
    Having Fun jp1300r's Avatar
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    Quote Originally Posted by Vman View Post
    Pretty sure it's 12mm, but I'd have to check to be 100%...
    Is the 300 gone yet, Vic?

  5. #5
    Vman's Avatar
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    Quote Originally Posted by jp1300r View Post
    Quote Originally Posted by Vman View Post
    Pretty sure it's 12mm, but I'd have to check to be 100%...
    Is the 300 gone yet, Vic?
    Next season the 300 will go and a new SVHO will come...

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