2001 Edition Yamaha F225A and LF225A Outboards Service Manual, Page 71Get this manual

2001 Edition Yamaha F225A and LF225A Outboards Service Manual, Page 71

Lower unitGeneral Checking the lower unit (for air leakage)
1Remove the check screw 1, and then install the special service toolChecking the propeller
1Check the propeller blades and splines for cracks, damage, or wearReplace if necessary
S69J3580

Pressurevacuum tester: YB-35956-A 2Apply the specified pressure to check whether the lower unit can hold it for at least 10 seconds
General
Checking the anodes