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  1. #1

    Yamaha 2000 xl1200 /Carb issues, Hole in piston,Burning up starter relays

    Had carbs rebuilt and all bad since, Now we have hole in #1 piston and keep burning up starter relays, and wont run under load in water no longer than 2 min.
    then burns up relay I have ,Roasted 3 relays. Mechanic set pop off pressure at 82 psi with a 1.2 seat I have been told. Can anyone tell me what the stock pop off should be?
    Stock Yamaha 2000 xl1200 only has D plate and chip for it. I think it may be Pop off being to high that burned hole in piston but don't know.
    Could anyone help !

  2. #2
    Formerly Ultra250 TN Aquaholic6801's Avatar
    Join Date
    Feb 2007
    Old Hickory,Tn
    Welcome to the Forum....

    You might try posting this in the Yamaha 2 Stroke section...

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