Yamaha Outboard F15A F9.9C, FT9.9D F15 Service Manual, Page 174Get this manual
CARBURETOR
EXPLODED DIAGRAM (F9.9CFT9.9D)
REMOVAL AND INSTALLATION CHART
Step ProcedurePart name Float pin Needle valve Plug Main nozzle Main jet Pilot jet Pilot screw Q'ty Reverse the disassembly steps for assemblyService points