NBR rubber material is used on all O-rings and rubber gaskets NBR has excellent resistance to the ethanol used in today’s fuels. Polaris Aftermarket Carburetor Rebuild Kit for Various 1995-1999 440 & 550 Model Snowmobiles Carburetor Rebuild Kit All Balls 26-1967 Racing Carb Rebuild Kit All Balls Racing Carb Parts All Balls Carburetor Repair Kit. Why choose All Balls: Quality materials, OEM-based sizing, and thoughtful upgrades help prevent leaks, hesitation and poor idling - restoring smooth throttle response and extending carburetor life (Needle jet and other pressed in jets are not included in kit., ) All Balls Carburetor Rebuild Kit - No. 26-1967 Rebuild Kit Closed Course Racing Only for Polaris Applications: Polaris Sport Touring 1999, Super Sport 440 1995 - 1996, Tran Sport 440 1997 - 1999, XCF 440 1997 - 1998, Polaris Sport Touring 1999., Polaris Super Sport 440 1995 - 1996., Polaris Tran Sport 440 1997 - 1999., Polaris XCF 440 1997 - 1998., Kit includes necessary all O-rings, gaskets, jets, needle, mixture screw, float bowl screws, float valve needle and seat.
