trouble strting

[jwood99]

I have an 1998 90 hp Evenrude outboard 4 cyl on a fish sky combo that quit starting abruptly (the starter was spinning the fly-wheel but would not fire)

I have replaced the choke solenoid and fuel pump to insure fuel supply (currently working)

I have replaced the ignition switch and had to provide a hot jumper line to the "B" battery post (currently working/starter spins the fly wheel as in the beginning but still not firing and I get a voltage reading across all ignition posts "C" "M" "I", etc...

Three of four cyl fire only if i disconnect the black/yellow wire from the power pack...

I replaced the coil on the one non firing cly and it is not firing

Up-stream of the coils is the power pack which I have ordered today.


1. If i get all four firing with the new power pack how do i correct the black/yellow wire (which may be the kill switch) ??

2. If the new power pack does not fix the issue what should i look at next to get her firing up ??

Thank you for your time!!

 

[gm280]

Not being there and doing any checking myself, I have to say it points to a kill switch issue. That fact that when you remove the black/yellow wire you get three cylinders to fire points to the kill switch that stopped the engine. So look at that before buying anymore parts. JMHO

 

[jwood99]

The kill switch and lanyard was removed from the dash before i bought the boat four years ago and has never been an issue.

1. how do i fix the kill switch if it has always been missing ??
2. would the original owner had to have by-passed it somehow in order to make the boat operational, and if so.... how??
3. there is a location in the dash for a kill switch, but it is void and there are no hanging or loose wires.

 

[gm280]

The kill switch and lanyard was removed from the dash before i bought the boat four years ago and has never been an issue.

1. how do i fix the kill switch if it has always been missing ??
2. would the original owner had to have by-passed it somehow in order to make the boat operational, and if so.... how??
3. there is a location in the dash for a kill switch, but it is void and there are no hanging or loose wires.

If the PO removed the kill switch, and that is a really stupid idea, then what did he do with the wires that were there. If you simple pushed them back into the area behind where the switch was, who knows if there are touching now. I would search out those wire to verify. A typical kill switch shorts out the primary side of the ignition to shut down the engine. So touching wires will do that. But again, I am not there and haven't checked things so that is just a guess on my part. JMHO