Yamaha TDM850 1996 Service Manual page 210

CARBURETOR
ASSEMBLY
CAUTION:
S Before reassembling, wash all parts in clean
petroleum based solvent.
S Always use a new gasket.
1. Install:
S Main jet 1
S Starter jet 2
S Pilot jet 3
2. Install:
S Valve seat
NOTE:
Make sure that projection a on the valve seat is
aligned with the slot b on the carburetor body.
3. Install:
S O-ring 1
S Diaphragm 2
4. Install:
S Pilot screw 1
Pilot screw (turns out):
2.0
6-4
CARB