Johnson 20 hp kill switch issue

[Wimbone]

Have some problems with kill switch not working (Help ).

I pulled the fly wheel to have a look at the ignition (see picture) I have found a number of wires,

Running to the black coil:
- Brown
- Black with Yellow stripe
- Black
- Brown with green stripe
- Brown with blue stripe
Running to spools:
- Yellow Blue stripe
- Yellow with Grey/violet stripe (?)
- Yellow

I assume that putting the black with yellow stripe wire to ground will kill the motor but I am not sure.
Can anyone confirm if this is correct before I start ?frying? some vital components, or if any of the other wires should be connected to ground to ?kill? the engine?.
The motor has type number BJ20BFLEIE. I am not sure which type of ignition is used see picture.

 

[Daviet]

Re: Johnson 20 hp kill switch issue

Black/yellow wire is the kill wire, ground it and the engine stops. Doesn't your engine already have a kill swich installed?

 

[Wimbone]

Re: Johnson 20 hp kill switch issue

Daviet,

Yes it does, it is wired into the rack at the side of the engine (see picture) but it does not work. Dont see a black yellow striped wire comming from the ignition going to the rack. One of the kill switch wires is hooked up to the ground the other one to a yellow wire, I assume it has not been installed correctly I have recently purchased the engine and I am not sure if it was working before. I have pulled the fly weel to see if I could find the black yellow wire.

 

[Daviet]

Re: Johnson 20 hp kill switch issue

Looks like someone has been doing some type of modifications to the engine, doesn't look like anything I have seen before.
Can you double check your model number, can't seem to cross the one you listed.

 

[Wimbone]

Re: Johnson 20 hp kill switch issue

Daviet,

Number should be ok, the outboard is manufactured in Belgium and is a rope started 20 HP 1991
B = Belgium
J = Johnson
20 = 20HP
BF = Belgium derated rope start
L = 20" long
EI = (19)91



The plan is to split the black and yellow and insert an addtional wire that will be hooked up to the kill switch.

 

[Daviet]

Re: Johnson 20 hp kill switch issue

OK, it was the Belgium that messed me up. I guess it does use a terminal board, not used to seeing it. As I said before, the black/yellow wire needs to go to ground to kill the engine.

 

[Daviet]

Re: Johnson 20 hp kill switch issue

Just went out and tried to find a manual on your engine, don't have one, but have a 1989 manual. It shows the black/yellow wire going directly to one side of the kill switch and the other side of the kill switch going directly to ground. By the way I see it, the black/yellow wire does not go to the terminal board.

 

[Wimbone]

Re: Johnson 20 hp kill switch issue

Daviet,

You are right there is no black yellow wire on the terminal board I will try and find out if any of the wires on the rack are connected to the black yellow wire with a multi meter. Some of the connetions on the rack are defintely non factory so someone has been tinkering with them. As explained before the plan is to tigh in a sperate wire to the black yellow wire underneath the fly wheel an run it directly to to kill switch as you indicated for the 1989 engine. I have ordered a manual but have not recieved it yet.

 

[Daviet]

Re: Johnson 20 hp kill switch issue

Have you tried to trace the black/yellow wire, I ddon't think you would have enough room under the flywheel to splice a wire. The black/yellow wire has to come out in the harness somewhere.

 

[AlTn]

Re: Johnson 20 hp kill switch issue

follow the wires from your stop switch on the tiller handle...is one wire grounded at it's end with a screw into the lower pan?...the other goes to a connector that unscrews?...when the connector is unscrewed, or pulled apart, does a black/ yellow wire then go to the powerpack < curved black plactic piece you're referring to as the black coil >?...if this is your arrangement, just check the two wires from the stop button for resistance...red lead on one, black on the other...is it infinite with the button in run position, then almost no resistance when it's pushed?..if so the stop button circuit is good...leaving the powerpack as the most likely culprit...if you'll go to marineengine.com you'll find diagrams of your ignition and tiller handle assemblies...find a model with electric start and it should match your engine...cdielectronics.com/troubleshooting may also shed some light on your problem

 

[Wimbone]

Re: Johnson 20 hp kill switch issue

Daviet,

I will check this next week, I can see the black yellow striped wire comming from the powerpack and going into the harness but it does not seem to come out at the other end, at least not from the bit that is hooked up to the rack. I will check the rest of the harness to see if I can find it.

Thanks

 

[Wimbone]

Re: Johnson 20 hp kill switch issue

AITn

The outboard has been set up for remote control (Teleflex) and no longer has a tiller handle and has is a rope start. The stop button is located in the front of the lower pan. The wireing running from the button to the rack is definetly not the standard wireing. Looks like someone used a standard lengt of brown/blue AC wire. The ground hook up is to one of the two screws that hold the rack in place. I will check the wires using a multi meter for resistance as you suggested and will try and follow the black yellow wire from the power pack as Daviet suggested. I have the number that is on the power pack so I will check the websites you suggested for a diagram.

Thanks

 

[Wimbone]

Re: Johnson 20 hp kill switch issue

Ok, I think I found the problem. After cleaning the wireing and using a multi meter I found that the black yellow striped wire is not connected to the rack but at the back of the power head and runs into some type of rubber socket. The wire looked black but after some cleaning I found it had a yellow stripe, checked the resistance with the meter and found this is the one. Will hook it up to the kill switch Saturday to see if it works. Recieved the manual, great stuff very detailed and helpfull. Checked the kill switch as AITn suggested and found it is working ok, no resistance when engaged (pushed) infinite resistance in normal position. Have a second kill switch from the steering position and found this was not connected right ans was working the opposit way to the switch on the engine itself.