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  1. #1

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    2002 1200 txi cracked cylinder

    Looking to see what could cause a cracked cylinder. My ski was running great last weekend then just died. started it back up and limped to the shore where I could check it out. as soon as I pulled the seat off and started it I could see water shooting out of the water jacket on forward most cylinder. What could cause this? I pulled plugs and did compression checks. front to back was 30-70-75. sounds like I'm in need of a top end for sure. I'm going to shop to scope cylinders today but am looking for insight as to cylinder cracking I dont want to dump a bunch of money into fixing ski if its just going to happen again next time I ride. picture shows where i'm seeing water. Spark plugs look good on all 3 cylinders
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  2. #2
    Moderator HiPeRcO's Avatar
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    Pull the cylinder heads off, that motor is toast if your compression readings are at all accurate. The MAG cylinder probably grenaded and broke the jug with it.

  3. #3
    Rasta Mon Condoms We Be Jammin!!!!! TxVirageTx's Avatar
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    thats just a pic your using for an example?water ingestion would be my guess,at say 3500 rpms if that cylinder filled with enough water the compression stroke would break the jug away from the mounting tabs of the jug.probably has a bent rod as well and /or rust on the crank/rod bearings if it wasn't disappated in a timely fashion

  4. #4

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    THats just an example pic. I pulled the head off. It's kind of hard to tell but the crack appears to only be in the water jacketClick image for larger version. 

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  5. #5

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    I bumped ski before I pulled head and it fired right up. I will check compression on the other two cylinders myself in just a minute.

  6. #6

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    Looks like rear two cylinders are both at 80psi. That's with a crappy harbor freight gauge though.

  7. #7

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    Front cylinder is just under 60 psi

  8. #8
    Rasta Mon Condoms We Be Jammin!!!!! TxVirageTx's Avatar
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    get another gauge and recheck,sounds like just a failure of the jug,might get away with just a jug and piston

  9. #9

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    Could be freeze damage or just a faulty casting.

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