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Author Topic:   OMC Ignition Switch Wiring

frickej4 posted 06-27-2007 08:47 AM ET (US)
I have a 1979 70hp Evinrude that I just bought. It came with one cable from the motor with 8 wires inside of this. I hooked up all of the wires to the ignition panel up front. I can get the starter to engage, but the wires aren't sparking. My electric choke works as well. What could be the causing my motor not to spark?!

an86carrera posted 06-27-2007 08:58 AM ET (US)
Kill switch wiring??
frickej4 posted 06-27-2007 09:00 AM ET (US)
that should be black with yellow stripe i believe...that wire i have wired to the "ignition" post...
frickej4 posted 06-27-2007 09:02 AM ET (US)
I am not positive that it is a wiring problem, but it is likely because I am not good with wiring by any stretch, I was just going from diagrams and an old motor...human error is likely.
jimh posted 06-27-2007 11:32 AM ET (US)
Please give us a complete schematic diagram of how you have wired your motor.
frickej4 posted 06-27-2007 02:29 PM ET (US)
I will post a diagram when I get home tonight.
According to the diagram you have provided on the website, the ignition kill wire (black and yellow) is supposed to be wired to the 'magneto' post. Here are my hookups on my ignition board: B - S - IGN (Ign has two posts, for ease of connections??). I also have the 'hot' sensor for hookup and the 'on' light.
My kill wire is wired to the ignition post, does that sound right? I don't think I have the 'magneto' hookup. My
frickej4 posted 06-27-2007 04:23 PM ET (US)
I haven't been able to shift into neutral, would that keep my engine from firing? I guess I'm not sure if I have the neutral safety switch. What could be causing my motor not to go into neutral?
Buckda posted 06-27-2007 05:04 PM ET (US)
Your motor won't likely start without being in Neutral.
Have a friend spin the propeller slowly as you attempt to shift back into neutral.
In the future, avoid shifting when the motor is not on. If you want to work the throttle (or have a young child who enjoys this), use the neutral detent lockout setting to keep the gears from actually engaging.
Good luck.
Dave
jimh posted 06-27-2007 05:20 PM ET (US)
I do not understand how you would interpret that wiring the ignition kill wire to +12-volts would be correct. The kill wire is to be either open (not connected) for the RUN mode and connected to ground for the STOP mode. How did you determine that it should be connected to +12-volts?
frickej4 posted 06-27-2007 11:57 PM ET (US)
Quote:
"I am not good at wiring at any stretch"
At any rate, I did unhook the kill wire and it started immediately. Thanks Buckda. I can just leave that loose now?
I didn't leave my motor running long because I didn't want to overheat it. I had the earmuffs on with water running, but I wasn't sure how long it took for the water pump to kick on. I think I was told 2-3 minutes at a high idle before it will circulate water. Is this correct?
an86carrera posted 06-28-2007 01:25 AM ET (US)
Glad the kill wire helped. You can leave it loose but, safety minded people would hook it to a lanyard switch.
Len
seahorse posted 06-28-2007 07:06 AM ET (US)
IF your switch only has the B, S, IGN terminals on it, then you have an inboard engine switch, not an outboard motor switch.
Get the correct switch and wire it up like the diagram and your engine should be fine.
frickej4 posted 06-28-2007 08:12 AM ET (US)
Thanks a ton for the help...hope everyone has a great 4th of July weekend.
jimh posted 06-28-2007 10:37 AM ET (US)
The article at http://continuouswave.com/whaler/reference/ignitionSwitch.html shows the normal ignition switch wiring for an OMC ignition switch for an outboard motor.
Chuck Tribolet posted 06-28-2007 10:52 PM ET (US)
Buckda: the engine won't start unless the SHIFT LEVER is in
the neutral position. It doesn't matter whether the engine is
in gear or neutral, just where the shift lever is.
Fickej4: Do hookup the deadman's switch. I've seen two guys
fall out of a boat and the boat keep going and circle back
on them (fortunately at low enough speed that I could get
a buddy on board to shut it down before it ran them over)

Chuck
frickej4 posted 06-29-2007 08:17 AM ET (US)
Thanks Chuck, I did end up hooking up a switch. On that note, the switch is the only way I can kill my engine. Turning the switch "OFF" doesn't kill it??? (Problem previous to installing the kill switch)
jimh posted 06-29-2007 08:27 AM ET (US)
Get the right switch. (See previous recommendation above.)
Wire it correctly. (See previous recommendation above.)

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Author	Topic: OMC Ignition Switch Wiring
frickej4	posted 06-27-2007 08:47 AM ET (US) I have a 1979 70hp Evinrude that I just bought. It came with one cable from the motor with 8 wires inside of this. I hooked up all of the wires to the ignition panel up front. I can get the starter to engage, but the wires aren't sparking. My electric choke works as well. What could be the causing my motor not to spark?!
an86carrera	posted 06-27-2007 08:58 AM ET (US) Kill switch wiring??
frickej4	posted 06-27-2007 09:00 AM ET (US) that should be black with yellow stripe i believe...that wire i have wired to the "ignition" post...
frickej4	posted 06-27-2007 09:02 AM ET (US) I am not positive that it is a wiring problem, but it is likely because I am not good with wiring by any stretch, I was just going from diagrams and an old motor...human error is likely.
jimh	posted 06-27-2007 11:32 AM ET (US) Please give us a complete schematic diagram of how you have wired your motor.
frickej4	posted 06-27-2007 02:29 PM ET (US) I will post a diagram when I get home tonight. According to the diagram you have provided on the website, the ignition kill wire (black and yellow) is supposed to be wired to the 'magneto' post. Here are my hookups on my ignition board: B - S - IGN (Ign has two posts, for ease of connections??). I also have the 'hot' sensor for hookup and the 'on' light. My kill wire is wired to the ignition post, does that sound right? I don't think I have the 'magneto' hookup. My
frickej4	posted 06-27-2007 04:23 PM ET (US) I haven't been able to shift into neutral, would that keep my engine from firing? I guess I'm not sure if I have the neutral safety switch. What could be causing my motor not to go into neutral?
Buckda	posted 06-27-2007 05:04 PM ET (US) Your motor won't likely start without being in Neutral. Have a friend spin the propeller slowly as you attempt to shift back into neutral. In the future, avoid shifting when the motor is not on. If you want to work the throttle (or have a young child who enjoys this), use the neutral detent lockout setting to keep the gears from actually engaging. Good luck. Dave
jimh	posted 06-27-2007 05:20 PM ET (US) I do not understand how you would interpret that wiring the ignition kill wire to +12-volts would be correct. The kill wire is to be either open (not connected) for the RUN mode and connected to ground for the STOP mode. How did you determine that it should be connected to +12-volts?
frickej4	posted 06-27-2007 11:57 PM ET (US) Quote: "I am not good at wiring at any stretch" At any rate, I did unhook the kill wire and it started immediately. Thanks Buckda. I can just leave that loose now? I didn't leave my motor running long because I didn't want to overheat it. I had the earmuffs on with water running, but I wasn't sure how long it took for the water pump to kick on. I think I was told 2-3 minutes at a high idle before it will circulate water. Is this correct?
an86carrera	posted 06-28-2007 01:25 AM ET (US) Glad the kill wire helped. You can leave it loose but, safety minded people would hook it to a lanyard switch. Len
seahorse	posted 06-28-2007 07:06 AM ET (US) IF your switch only has the B, S, IGN terminals on it, then you have an inboard engine switch, not an outboard motor switch. Get the correct switch and wire it up like the diagram and your engine should be fine.
frickej4	posted 06-28-2007 08:12 AM ET (US) Thanks a ton for the help...hope everyone has a great 4th of July weekend.
jimh	posted 06-28-2007 10:37 AM ET (US) The article at http://continuouswave.com/whaler/reference/ignitionSwitch.html shows the normal ignition switch wiring for an OMC ignition switch for an outboard motor.
Chuck Tribolet	posted 06-28-2007 10:52 PM ET (US) Buckda: the engine won't start unless the SHIFT LEVER is in the neutral position. It doesn't matter whether the engine is in gear or neutral, just where the shift lever is. Fickej4: Do hookup the deadman's switch. I've seen two guys fall out of a boat and the boat keep going and circle back on them (fortunately at low enough speed that I could get a buddy on board to shut it down before it ran them over) Chuck
frickej4	posted 06-29-2007 08:17 AM ET (US) Thanks Chuck, I did end up hooking up a switch. On that note, the switch is the only way I can kill my engine. Turning the switch "OFF" doesn't kill it??? (Problem previous to installing the kill switch)
jimh	posted 06-29-2007 08:27 AM ET (US) Get the right switch. (See previous recommendation above.) Wire it correctly. (See previous recommendation above.)