1986-1987 Honda TRX350 FourTrax 4X4, 1987-1989 TRX350D Foreman 4X4 Service Manual, Page 49Get this manual
FUEL SYSTEM Blow all carburetor body openings open with compressed air
CARBURETOR ASSEMBLY
Install the starter jetslow jetneedle jetneedle jet holder and main jet
CAUTION
Handle all jets with careThey can easily be scored or scratchedInstall the pilot screw and return it to its original position as noted during removalPerform pilot screw adjustment if new pilot screw is installed (page 4-16) Install the plug and baffle