2001 Polaris Sportsman 400-500 DUSE and H.O. Service Manual, Page 163Get this manual

2001 Polaris Sportsman 400-500 DUSE and H.O. Service Manual, Page 163

FUEL SYSTEMCARBURETION
CARBURETOR INSPECTION
1Inspect jet needle and needle jet for wearLook for discoloration, shiny spots, or and area that looks different than the rest of the needleThe middle to upper portion of the needle where it contacts the needle jet is the most likely wear pointIf jet needle shows signs of wear replace both needle and needle jet to prevent rich condition

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