Polaris 2001 High-Performance Snowmobile Service Manual (PN 9916690), Page 152Get this manual
CARBURETION Mikuni TM-38TM-40 Carburetor Service Disassembly Cont6From top of carb, loosen allen head screw holding needle in positionSlide holding plate to side
7Reach into top of carb with long nose pliers and pull out needle