Yamaha Marine Outboards Factory Service / Repair/ Workshop Manual 225G 250B L250B, Page 274Get this manual

TILT RAM ASSEMBLY AND GEAR PUMP UNIT (200H, 225GV200, V225)
1Install: O-rings Ball Pin Check valve Check valve assembly 5

INSTALLING THE GEAR PUMP UNIT

NOTE: When installing the check valve assembly, make sure the pin is on the tilt ram cylinder side as shown

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