will not start - power pack

[jwood99]

1998 90 hp evenrude

It ran last week but not this week.
The starter turns over but will not start.
I replaced the fuel pump and the starter primer solenoid still no start.
NONE of the four spark plugs fire (i tested against the engine bolts-no spark on any)

It seems unlikely that all four coils went out at once.

The only other thing i can think of is the power pack.

1. how can i test the coils?
2. how cahn i test the power pack?
3. What should I check/replace next?

 

[flyingscott]

Is the lanyard for the kill switch on

 

[jwood99]

no, it was completely missing when i bought the boat 3 years ago.

 

[flyingscott]

I would start with that wiring first VERY rarely will all 4 cylinders lose spark at the same time unless the kill switch or ignition switch is involved.

 

[jwood99]

1. how can i test the coils?
2. how cah i test the power pack?

 

[flyingscott]

Go to www.cdielectronics everything you need to test your electrical system is there

 

[Faztbullet]

1998 was the year that the kill tether fit over top of switch, this was a mechanical action as it actually turns key off....thats why it runs without a tether. Check it out using the CDI guide starting at power coil and voltage from solenoid to pack.

 

[jwood99]

Last night i disconnected the black/yellow wire going into the power pack and i now have 3 of 4 of the spark plugs firing.

If i re-connect the black/yellow wire, the spark plugs no longer fire.

As for the one coil not firing, I ran it's spark plug and power wires to the lower coil and it did fire so i thin k i need to replace the one coil.

I'm not sure what to do about the black/yellow wire. I got the info from link below.

I also don't know what the stop circuit is and how to fix it. Just replace the ignition switch?

http://www.cdielectronics.com/wp-content/uploads/2013/01/113-4767.pdf

NO SPARK ON ANY CYLINDER:
1. Disconnect the black yellow stop wire from the power pack and retest. If the engine's ignition has spark, the stop circuit has a fault-check the key switch, harness and shift switch.

Thank you for your time!