Yamaha F100B F100C Outboards Factory Service Manual, Page 246Get this manual

Yamaha F100B F100C Outboards Factory Service Manual, Page 246

Bracket unit
2Check the valve seat 1, down-relief valve 2, and valve pin for dirt or residueClean if necessary
Disassembling the gear pump
1Remove the main valves 1
S60C7470

S60C7420

3Check the shuttle pistons 4, main valves 5, and up-relief valve seat for dirt or residueClean if necessary
WARNING