Polaris 2001 High-Performance Snowmobile Service Manual (PN 9916690), Page 148Get this manual
CARBURETION Keihin Carburetor Service Carburetor Assembly
1Install pilot jet and main jet
2Install inlet needle and float assembly
Adjust float with tange only
3Hold carburetor at angle shown so needle spring is not compressedMeasure from gasket surface of carb body to highest point on float using float level gaugeMeasurement should be within specification