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  1. #1

    2003 GP 1300r motor issues

    The owner was riding the ski and it was topping out at 30mph, then it locked up. The sparkplug in the 2nd cylinder had metal shavings on it so we pulled the head, and found the most mangled piston I have ever seen. (Pictured below.) The ski is has no performance mods, but I am not sure what has been repaired on the ski. I know it has spent time in the shop, but beyond that I am not sure. Any ideas on what went wrong? Click image for larger version. 

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  2. #2
    WATER WOODY's Avatar
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    Welcome to the forum. Looks like a sleeved cylinder, not stock ! Whats the rest of the cylinders look like? Try and post up some better pics if you can. Is the power valve completely gone?

  3. #3
    Quote Originally Posted by WATER WOODY View Post
    Welcome to the forum. Looks like a sleeved cylinder, not stock ! Whats the rest of the cylinders look like? Try and post up some better pics if you can. Is the power valve completely gone?
    Thanks, I really appreciate it. I will try to take some better pictures this weekend, the ski is at my lakehouse. The other cylinders seem to be in good condition, they are not scored or anything, but I didn't even notice if they were sleeved or not. The other two pistons seem to be in good shape as well. I am not sure about the power valve either, I will have to take a closer look at it as well. Do they come out and hit the piston?

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