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Old 12-29-2008, 01:56 PM   #1
trfour
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WakeUp, sounds as though water, or moisture has gotten into the fuel system. Even if you use stabilizer in the fuel in the off season, if you don't keep the fuel tank topped off, it will rain condensation inside of your fuel tank with the heat and cold temps over time. It only takes less than a very small drop of moisture to totally block a jet, and not allow any fuel to pass through it. I would strongly suggest cleaning the entire fuel system, as if you trail ride without a moisture free fuel system, it can lean out the fuel mixture and burn pistons in a heart beat! Also, I would do a vacume check on each cylinder, as a worn or blown crankshaft seal would also keep the proper amount of fuel from getting into the cylinder.

Good Luck.
T.
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Old 01-05-2009, 09:33 AM   #2
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Had the exact same problem with a Ski Doo 550 fan just last week. We took the carbs apart and found the float needle to be sticking. A squirt of WD-40 solved the problem in no time. We did do a thorough cleaning of the carbs too, but the sticking needle was the problem.
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