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  1. #1

    xl 1200 npv holed number one piston

    At about 180 hrs:
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  2. #2
    Hydrotoys's Avatar
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    No problem. I'll move it for you.

    Welcome to the GH forums.

    FYI, that looks like a crank bearing failure or a whole lotta ring bouncing around on top of that piston.

  3. #3
    Moderator OsideBill's Avatar
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    I had one look like that once, detonation I had starved the #1 cylinder.

  4. #4
    Quote Originally Posted by OsideBill View Post
    I had one look like that once, detonation I had starved the #1 cylinder.
    Yeah, I am going to go through the carb(s). I have been told that 2 and 3 look ok.

    Crank looks pretty clean. Bearings feel smooth.

  5. #5
    if/when u get carb kits stick with factory mikuni kits !

  6. #6
    Quote Originally Posted by ZMANN View Post
    if/when u get carb kits stick with factory mikuni kits !
    If? Man, I am not doing all this work just to watch it happen again.

  7. #7
    lol!

  8. #8

    Gnarly Ports

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  9. #9
    Moderator OsideBill's Avatar
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    Quote Originally Posted by krivashulk View Post
    Yeah, I am going to go through the carb(s). I have been told that 2 and 3 look ok.

    Crank looks pretty clean. Bearings feel smooth.
    I had a restriction in my fuel delivery, so check hoses and filters, also if you install a primer kit be sure you cut the supply tee into the return line.

  10. #10
    Quote Originally Posted by OsideBill View Post
    I had a restriction in my fuel delivery, so check hoses and filters, also if you install a primer kit be sure you cut the supply tee into the return line.
    Great advice, thanks.

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