2003 Polaris Deep Snow Snowmobiles Service Manual, Page 133Get this manual
FUEL SYSTEMCARBURETION
Mikuni TM 38TM 40 Exploded View
Top Cap Gasket Adjustment Screw Ring Lever Plate Plate Packing E-Ring Ring Spring Piston Valve Jet Needle Check Valve Cap Funnel O-ring Pin Main Jet Spring Pilot Jet Starter Jet Adjuster