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Johnson J115GLECM no spark

T

trynhooker

Regular Contributor
Hey guys, working on this motor the other day which has no spark.
Narrowed it down to what I thought was the power pack and replaced it, still no spark.
Stator voltages and resistance are all great.
Power pack to the coils I get like .8 to 1+ volts and that's it.
Sensor wheel is good and I cleaned the optical sensors with alcohol.
Disconnected 4 wire plug to power pack to remove kill circuit - no spark
Disconnected yellow wires to voltage reg/rect. - no spark
Disconnected boat wiring from engine and cranked locally - no spark

On the sensor DC voltages, orange/red is 11.5v when cranking.
Black/orange is giving no voltages (now) The other day when I tested it before changing power pack I was getting voltages on both orange/red and (black/orange wires were at 10vdc).

My opinion is the sensor is bad, but cannot test with tester (I don't have) nor do I know what voltages should be on the other 2 (white/colored) wires?

I followed this exactly http://issuu.com/cdielectronics/doc...uide_-_2012_1?mode=window&viewMode=doublePage

I appreciate any help/suggestions
 
when you say you disconnected a 4 wire connector to kill circuit i dont know what you are disconnecting but the kill switch is one wire with a inline disconnect on a single wire from the power pack...
 
this engine has 2-4 wire connectors to the power pack. 1 has the kill wire, the other connector has the 4 wires from the stator. if you look at the link I posted you will see a pic of the wiring for this engine.
 
does the black and yellow wire have a inline connector for just it?that is what you want to disconnect...also check the wire going back to the stop switch for voltage...you want no voltage whatsoever on this wire...this wire should be floating unless the stop switch is activated..
 
The black/yellow comes from the engine wiring connector harness to the 4 wire plug into the power pack. I've actually cut the black/yellow wire just to take the kill circuit out of the picture. It however has no effect and no there is no voltage to the black/yellow wire nor is it grounded.

I cranked the engine over with the engine/boat wiring disconnected to rule out everything from the key switch, no effect either, no spark still.

Everything I've done is leaving only the optical sensor since the black/orange wire from the sensor is giving no voltage as it should be around 10vdc.

Again, if there are any questions as to the wiring on this motor, follow the link in my original comments as it shows the exact wiring diagram on page 59/60.
 
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