2001 Edition Yamaha F225A and LF225A Outboards Service Manual, Page 26Get this manual
GEN INFO
General information
PTT (Power trim and tilt) unit
In the newly designed PTT unit, the up-main valve, down-main valve, up-relief valve, and downrelief valve have been concentrated in the gear pump housing in order to improve the serviceability of the engine and ensure reliable operation
S69J1410