2001 Edition Yamaha F225A and LF225A Outboards Service Manual, Page 22Get this manual
GEN INFO
General information
PTT (Power trim and tilt) unit
The PTT unit has been newly developed for the F225Based on the field-proven 61A type, its PTT fluid passage and internal valve construction have been changed for this applicationAlthough the valves of the 61A type have been distributed to the various areas of the gear pump housing, the valves of the new PTT unit have been concentrated in the vicinity of the gear pump to improve their serviceabilityIn addition, the material of the gear pump housing has been changed to enhance its corrosion resistance