1994 Johnson/Evinrude "ER" CV 85 thru 115 outboards Service Manual, Page 258Get this manual
6With the engine running at 1000 RPM, disconnect the tachometer and observe the voltmeterVoltage should increase approximately
from the terminal boardCheck for voltage at the rectifierregulator gray lead If voltmeter does not show voltage, go to Step
If voltmeter shows voltage, replace the rectifier regulator Isl 9With the engine not running and the key switch in the "ON"
position, connect voltmeter to engine wiring harness gray leadDisconnect the tachometer from the circuitCheck to see if voltage
disappears, then disconnect the VRO pump's4-pin Amphenol connector and check voltmeter If voltage disappears after disconnecting
component, replace that component If voltmeter shows voltage after disconnecting both components, substitute the remote control
wiring harness with known good harnessIf voltmeter still shows voltage, replace the engine wiring harnessThe "low oil" and