Yamaha 115-225 HP Outboards Service Manual, Page 71Get this manual
PERIODIC SERVICE
3) Draw oil slowly from engine oil tankIndicator should move to yellow then to red segmentEngine speed should be reduced to about 2,000 rmin when the floats reach their lowermost positionsIf not, reduce speed and stop the engine immediatelyThe function may be defectiveOil feed pump tilt stop test Tilt outboard motor to check that oil feed pump in operation is stopped when the tilt exceeds 34 degreesIf not, check the following unit115 and 130: Oil feed pump control unit 150-200Oil feed pump control section in COl unit 225Oil feed pump control function of microcomputer unit