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  1. #1

    What caused this?

    I just bought a project ski, 2000 xl1200. The second cylinder and crank are trashed. The previous owner thinks the carb was rebuilt improperly, possibly causing lean conditions. I checked the oil lines, PV, and no luck. It looks as if a needle bearing from the rod may have been released into the engine after a misfire. I am new to skiis so if someone that has rebuilt this motor before can see from the damage what most likely caused it, I would appriciate the help.

  2. #2
    CHICKA WAH WAH bren's Avatar
    Join Date
    Sep 2007
    Cairns, Australia
    worn rings, lost compression, slopped about and nipped up.
    was run after nipping up and the began to self destruct

    this is my guess only, I'm not a mechanic

    did the owner say how many hours on the engine?

    or how many hours since the carb was done, and was it one or three carbs?

  3. #3
    Not sure of the hours. All three carbs were rebuilt. I am going to replace the crank, cylinder, and piston, but I want to know what caused this so it doesn't happen again.

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