1995 Johnson/Evinrude Outboards 125-300 90 degree LV Service Manual, Page 367Get this manual

1995 Johnson/Evinrude Outboards 125-300 90 degree LV Service Manual, Page 367

Cranking Discharge Method 1Check battery voltage If voltage is greater than 12.5 volts, go to Step If voltage is less than
35 ampsAs you continue to run the engine at 4500 RPM, the voltage should stabilize at approximately 14.5 volts and the alternator
output should begin to decreaseIf the engine's ammeter doesn't indicate the above, check stator condition before replacing
rectifierregulatorTachometer CircuitV4 1Ifthe VRO "no oil" warning signal is in question, or ifthe boat's tachometer is not
working, test the tachometer circuit2Verify that all wiring and Amphenol connectors are in good condition3Set peak-reading
voltmeter to "POS" and "50"4Attach the meter red lead to terminal strip gray terminal and meter black lead to clean engine
ground rJlVYith the engine running at 1000 RPM, the voltmeter should mdlcate volts If the voltmeter shows specified voltage,
go to Step If the voltmeter shows less than volts, go to Step If the voltmeter does not show voltage, replace the rectifierregulator