Polaris snowmobile throttle problem?

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AndyD

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I have a 99/2000? Polaris Indy Trail snowmobile. Starts and runs fine until the throttle is pushed past the half-way point. When pushed this far the snowmobile begins to stall. when throttle is released the engine returns to normal power. I have already pulled apart and cleaned the entire engine (carb, cylinders, air intakes), changed the spark plugs, and checked all gas lines and filters and still have no idea why this is happening. please help
 
Try running a gas additive called SeaFoam in it. About 1 to 2 ounces per gallon of gas. This is the best stuff on the market for cleaning out a fuel system.
Now a days, gas has ethanol added to it. Ethanol evaporates much faster than gas without it. This leaves behind a gunky residue.
 
i have had my starter checked its good =replaced magnetic switch- new battery-turn key and get nothing any sugestions
 
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