2001-2003 Honda TRX500FA Factory Service Manual, Page 99Get this manual
FUEL SYSTEM Turn the throttle stop screw to align the butterfly throttle va lve with the edge of the outside by-pass hole in he carburetor body, if the throttle stop screw
was removed
""'" THRO TTLE STOP SCREW
Install the collar and carburetor heater with the st epped side of the collar faci ng the carburetor and tighten he carburetor heate r