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  1. #1

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    compression readings for 99 xl1200ltd

    compression readings were.

    front cylinder was--100
    second cylinder was--120
    third cylinder was 110

    should I still pull the head now to see what I have or are these compression readings not to bad for a stock ski.

    Thanks yb


  2. #2

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    I would,just to be on safe side

    later cd

  3. #3
    Flying Scotsman's Avatar
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    Do it now and you may get away with a hone and rings.
    If you wait who knows how bad it may become.
    SCOTT....................

  4. #4

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    Well that was really not what I wanted to read but I guess it is better to be safe than sorry. so much for watching the nascar race today, going to go out and pull the head.

    Thanks everyone for all of the advise yb

  5. #5

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    Can anyone tell me what compression readings I should have.

    thanks yb

  6. #6
    Flying Scotsman's Avatar
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    135 horse Yamaha should be 120psi.

  7. #7
    these is a 155 hp engine
    20 psi is a big diferent on a 155 engine

  8. #8

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    with valves down 120/unplug motor for valves or will give false reading

    later cd

  9. #9

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    well the head is off and it looks like there is alittle bit of a hot spot on the #3 cylinder I can feel alittle bit of roughness on that spot as well, not to much though. should I go ahead and pull the jugs

    thanks yb

  10. #10
    Moderator RX951's Avatar
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    Got any pics ?

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