No spark on 1987 Evin 48hp

[phillipboggs]

I'm not getting any spark on either cylinder of my 1987 Evinrude 48HP outboard. Here are the things I have checked so far:

1. Separated black/yellow kill wire at 5-pin connector and cranked - No Spark.
2. Reconnected black/yellow kill wire. Disconnected red barrel plug and jumped starter - no spark.
3. Replaced charge coil and sensor assembly on a guess - No Spark.
4. Using multimeter without a DVA (one is ordered) checked all the voltages and resistance that I could. Nothing out of range. Again, I have no DVA so I could not test Power Pack and other electronics as described in the service manual.

One thing I did note - I connected a lead from the Black/Yellow wire on the Power Pack side of the 5-pin connector and checked with multimeter while cranking the engine and it showed around 50 Volts. Is this normal?

Any suggestions are appreciated...

 

[beck4]

Re: No spark on 1987 Evin 48hp

I would try a new power pack and rectifier. if u are going to do it u should replace both. a bad rectifier can damage a power pack or so im told. i had the same problem on my 87 70hp. after replacing them i still had no spark. that is until i replaced a fuse i didnt know about. but that is what i would do cuz it worked 4 me

 

[phillipboggs]

Re: No spark on 1987 Evin 48hp

Can you tell me more about the fuse you replaced.

 

[beck4]

Re: No spark on 1987 Evin 48hp

the fuse i replaced was in a wire loom. it looked like a beefed up inline fuse plug. it was on the top of the motor by a red wire harness plug. i belive the fuse was a 20. the loom is rite next to the d-ring used to lift the motor. good luck.

 

[phillipboggs]

Re: No spark on 1987 Evin 48hp

Update - built a DVA and ran the tests and found the power pack to be bad. Replaced it with a new one and the boat started on the first crank.