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  1. #1

    compresson test?

    Do you have to do anything with the gas valves to perform this on a 01gpr? Or do you just remove the plugs and turn the motor over? Thanks


  2. #2
    Moderator RX951's Avatar
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    How to Check Compression How to do a Compression check

    Make sure battery is charged
    Pull all the wires
    Only remove the plug you are checking
    Hold throttle Wide Open
    Turn engine over
    Maintain 350-400 rpms for 3-5 seconds
    Check Reading
    Depressure Guage
    Install plug and remove the next one
    Repeat Sequence


    Leave the gas valves as they are. They will stay closed.
    They will only open when there is exhaust pressure from the engine running.

  3. #3
    One day at a time..... N8R's Avatar
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    Re: How to Check Compression How to do a Compression check

    Quote Originally Posted by RX951
    Make sure battery is charged
    Pull all the wires
    Only remove the plug you are checking
    Hold throttle Wide Open
    Turn engine over
    Maintain 350-400 rpms for 3-5 seconds
    Check Reading
    Depressure Guage
    Install plug and remove the next one
    Repeat Sequence


    Leave the gas valves as they are. They will stay closed.
    They will only open when there is exhaust pressure from the engine running.
    does this work for 03-07 GPRs ???????????

  4. #4
    Moderator RX951's Avatar
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    yep

  5. #5
    Thanks I will do this tonight.

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