Yamaha F100B F100C Outboards Factory Service Manual, Page 245Get this manual
Gear pump (F100B) No1 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 Bolt Ball Shuttle piston O-ring Main valve Ball Bolt Bolt Circlip O-ring O-ring Backup ring Spring Absorber valve pin Ball Up-relief valve seat O-ring O-ring Ball Pin Valve seat Down-relief valve O-ring Filter Valve pin Part name Manual valve Q'ty 1