1995 Johnson/Evinrude Outboards 50 thru 70 3-cylinder Service Manual, Page 242Get this manual
4 DR4029
Starter System Voltage Drop TestAll Models
By making systematic check of the starter system, any component or electrical connection having excessive resistance can be located
i and remove all spark plug leads
Avoid accidental starting of engine while servicing; twist
Clean and retighten, or replace, any connection, cable, or component having greater than specified voltage dropf4l 1Connect voltmeter positive lead to battery positive postConnect voltmeter negative lead to starter solenoid positive terminalTurn key switch to START to crank engineVoltage reading should not exceed 0.3 voltIn Step 2, connect the voltmeter leads only while the engine is cranking, or damage to the voltmeter can occur