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  1. #1

    Question Break in period?

    What do i need to do to break in a 2000 yamaha gp 800? I am replacing the crankshaft, pistons and gaskets n seals. Any advice would be appreciated.

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  3. #3
    Gus13letter's Avatar
    Join Date
    Apr 2008
    Tampa Bay, FL
    When breaking in our 2 strokes we always ran double oil in the first tank taking it easy at first, then started to run through the power band, but not to do long WOT runs just varying through all RPMs. After that you should be good to go.

  4. #4
    All hail the Chief! fullboogie's Avatar
    Join Date
    Nov 2005
    The break in recommendations are all great in theory, but I don't know of anybody who sticks to them other than oil ratio. It's just too hard not to hammer it before you run 10 gallons through it. Everyone I know ends up hammering the daylights out of it shortly after starting it up. Besides, the rings get seated when a load is put on them, which favors some aggressive riding.

    In the end, I'd worry more about oil ratio than throttle.

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