Polaris 2001 High-Performance Snowmobile Service Manual (PN 9916690), Page 125Get this manual
CHAPTER CARBURETION
Jet Part Numbers Exploded Views Fuel Delivery System Typical Mikuni Starter System Pilot System Slide Cutaway Jet NeedleNeedle Jet Main System FunctionFloat System Component Effect vs Throttle Opening Mikuni TM 38 Effect vs Throttle Opening Mikuni TM 40 Effect vs Throttle Opening Keihin Needle Explanation Keihin Carburetor Service Keihin Carburetor Synchronization Mikuni TM-38TM-40 Carburetor Service Mikuni TM-38TM-40 Carb Synchronization Mikuni TMX Carburetor Service Mikuni TMX Carburetor Synchronization Adjustments Fuel Pump Operation Fuel Pump Exploded Views Troubleshooting