2004-2009 Honda TRX450R/TRX450ER Service Manual, Page 154Get this manual
FUEL SYSTEM (After '05)
CARBURETOR ASSEMBLY
FLOAT VALVE FLOAT O-RING PUSH ROD Nf (ny THROTTLE DRUM ASSEMBLY RETURN SPRING
NEEDLE HOLDER
THROTTLE DRUM COVER
TOP COVER THROTTLE ARM
FLOAT CHAMBER
SLOW AIR JET CARBURETOR BODY BAFFLE PLATE THROTTLE STOP SCREW PILOT SCREW CHOKE VALVE
O-RING FLOAT CHAMBER CAP DIAPHRAGM SLOW JET ACCELERATOR PUMP COVER THROTTLE VALVE PLATE MAIN JET
STARTER JET
NEEDLE JET
HOTSTARTVALVE (TRX450R only)
Install and tighten the slow air jet to the specified torqueTORQUE: 0.9 (0.1 kgf-m, 0.7 Ibfft)
SLOW AIR JET Damage to the pilot Install the O-ring, washer, spring and pilot screwSCTGW S&dt Will