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  1. #1

    2002 Polaris Genesis No compression On middle cylinder.

    I have a 2002 Genesis Fuel Injected. It was running great and then it started running really rough. I checked the compression and the middle cylinder was 0. What could be the problem? Thanks for all your help

  2. #2
    axgrider73's Avatar
    Join Date
    Feb 2007
    Southeast Ohio
    Probably a burnt piston. Pull the head and take a peek.

  3. #3
    I was finally able to pull the head off. The piston looked great, was not burnt or anything. What could be the problem?

  4. #4
    ph2ocraft's Avatar
    Join Date
    Apr 2006
    Campbell, Ca.
    Was the o ring in place or any damage to the dome?
    Is the cylinder wall scored (Rotate the engine so the piston is low in the cylinder)

  5. #5
    The o ring was in place , there was no damage to the dome.
    Cylinder wall was not scored.
    here is a link to a picture
    Last edited by polarisbuyer; 09-08-2008 at 07:43 PM.

  6. #6

    Join Date
    Jul 2008
    England.Great Britain . UK
    looking at pic, piston top on edge seems slight bulge usally broken rings, remove cylinder slowly wrap a cloth round con rod. befre parting piston and cylinder, to catch broken rings, so they dont jump in crank case

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