Yamaha F100B F100C Outboards Factory Service Manual, Page 289Get this manual
Gear pump (F100C) No1 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Circlip Manual valve O-ring Manual release spring Manual release pin Circlip Ball Manual valve seat O-ring Pump housing Main valve O-ring O-ring Shuttle piston O-ring Main valve O-ring O-ring O-ring Valve seat Spring Relief valve seat O-ring Filter O-ring Part name Q'ty 1.9 9.6 mm