Yamaha 115-225 HP Outboards Service Manual, Page 70Get this manual
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6) Slowly raise remote oil tank float and then engine oil tank floatIndicators should start to blink above three segments immediately and pump should be actuated at the same timeThe pump should stop when the engine oil tank float returns to uppermost position
7) Set main switch once to OFF and then to
ONIndicator should appear above green segment and buzzer should stop at the same timeIf any of above operations is not perfonned, check electrical system as described in applicable section