ugghhh... what now? Dyna install issue 77 Gl1000

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akolleth

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I am very confused right now. I bought a Dyna S unit complete with coils to solve the ignition issue I was having on my 77 Goldwing. Problem I am having is with the power supply line that feeds the coils (black with white stripe)

Background. On the original wiring harness there is the black wire with white stripe that comes from the stop switch and ends with a double female bullet connector. The two coil power lines attach to the double bullet connector. Monday I started to work on setting the Dyna up . I noticed my double connector was looking suspect so I cut the wire back about 2 inches and crimped on a new double female bullet connector. I checked the lines voltage when I cut it (good) and I checked the connectors voltage after I crimped it in place (still good). both readings were showing a strong 13 volt reading.

The problem Flash forward one day. I install the rest of the Dyna stuff, all goes well. Went to time it and nothing. Could not get the test light to come on no matter how far I rotate it. I ran through all the power sources I could think of, then found that coil power wire was dead. Flat dead. No voltage at all. WTF? It had good voltage the night before. There is only about 6 inches of exposed wire from where it leaves the wiring harness, so I checked and no cracks or breaks, no cuts. Crimp on the connector is still very tight, good contact with the wire center. So I used the volt meter to check the wire closer to where it leaves the wiring harness, and its still completely dead. I checked the main fuses and all were good. I made sure the bike was set to on, nothing, there is just no power to that line. The stop switch is getting power and is transferring it to the other lines that come from it (got positive voltage readings from other wires that lead from the stop switch)

I am at a loss what could have happened over night that would cause a live wire to go dead. How could a wire with no load, and no physical stress at all suddenly just go dead? Did it ground somehow? I can't see how that's possible from overnight when nothing changed.

As for a solution- I suppose the way I see it I have a couple of options to handle it

1- Open up the stop switch and disconnect the coil power feed wire. Re-wire a new power feed wire from the same location and just leave the old wire hanging out in the harness- since the old wire would not be connected to anything anyways and it would be a royal pain in the @$& to fully remove it from the harness.

2- Wire a new coil power feed wire from another source. Like for instance the White wire with Green stripe that powers the turn signal flasher. I already have a splice in that line to power the Dyna. I just keep thinking that's probably a bad idea to add another, as how many wire splices running power can you really add to one line? Any other sources I could tap into to run a new line?

3- Anything else I am missing?

https://www.youtube.com/watch?v=8AodHdQ4O_U

[video]https://www.youtube.com/watch?v=8AodHdQ4O_U[/video]
 
Wires can rot from within. Joe had one on hooch do that. We hunted for days to find it was just a dead wire.if you have power on the wire near the switch solder on a new wire and use it to power a relay then run a wire from the battery through the relay to the coils. You should then have plenty of power for the coils.
 
hmm. an interesting one. this might be a dumb question, but what became of the ballast resistor ? if you have Dyna coils and the Dyna points replacement module there is no need for the ballast.
so then, the black wire that runs to the ballast and the black/brown that runs from the ballast to the stop switch , should be joined together.
 
[url=https://classicgoldwings.com/forum/viewtopic.php?p=154870#p154870:z172gh0o said:
aussiegold » Wed Jul 29, 2015 7:19 am[/url]":z172gh0o]
hmm. an interesting one. this might be a dumb question, but what became of the ballast resistor ? if you have Dyna coils and the Dyna points replacement module there is no need for the ballast.
so then, the black wire that runs to the ballast and the black/brown that runs from the ballast to the stop switch , should be joined together.

Ballast wires were connected, soldered and heat shrunk. I checked the voltage on them too and they are still good to go
 
[url=https://classicgoldwings.com/forum/viewtopic.php?p=154874#p154874:1cps79zy said:
aussiegold » Wed Jul 29, 2015 7:26 am[/url]":1cps79zy]
so theres power up to the stop switch ? but not back out ?

Correct, power is good going to the stop switch, but somewhere after the switch it dies. Or maybe even in the switch? Only one wire comes out of the switch, that is the black wire with white stripe that feeds the coil, and its dead.
 
well i find it hard to use the old honda stuff as v said ive had trouble with the old wiring harnest ....personally my ignition is not hooked up to the very old honda switches and connectors from 1970s ....mines all new wiring that powers the ignition system ....in your case i think id hook up the dyna power strait to battery to check for light coming on to set it
 
Okay its fixed. I started checking out the kill switch. Power was going into it, but nothing coming out. Which kinda pointed me to the switch being bad. So I took it apart and it was kinda corroded. I cleaned it up and bam! Power restored. Bonus was that that the kill switch is one more thing I can check off the list as being restored/rebuilt on this build.

Now the big event later today as I time up the Dyna and hopefully she kicks back to life.


thanks again everyone for the advice--
 
Just my 2 cents here. I had installed the Dyna coils new on my 77. Here is what happened, I checked the voltage it was low after a year with them coils (Dyna) they crapped out. I took the black wire that fed the coils and put it on the low side of a 5 pin relay. Took the other side of the low side to ground. New wire from battery to high side of relay then out high side to coils. I'm really not a big fan of Dyna coils but the pickup is another day to replace for now wasted spark. I did use the ACCEL coils and they (IMO) have way more spark then Dyna coils. no choking at all ever. Cleaner plugs with no sign of lean burn on them. Mounted on the stock brackets..

https://www.youtube.com/watch?v=rLuCH5cjY24

https://goo.gl/photos/CrpVjgQDxxLh9xHL9
 
[url=https://www.classicgoldwings.com/forum/viewtopic.php?p=155079#p155079:2f80ita1 said:
CRAFTMAN6001 » Sat Aug 01, 2015 11:57 am[/url]":2f80ita1]
Just my 2 cents here. I had installed the Dyna coils new on my 77. Here is what happened, I checked the voltage it was low after a year with them coils (Dyna) they crapped out. I took the black wire that fed the coils and put it on the low side of a 5 pin relay. Took the other side of the low side to ground. New wire from battery to high side of relay then out high side to coils. I'm really not a big fan of Dyna coils but the pickup is another day to replace for now wasted spark. I did use the ACCEL coils and they (IMO) have way more spark then Dyna coils. no choking at all ever. Cleaner plugs with no sign of lean burn on them. Mounted on the stock brackets..

https://www.youtube.com/watch?v=rLuCH5cjY24

https://goo.gl/photos/CrpVjgQDxxLh9xHL9
thats the first time I've heard of Dyna coils failing. where was the voltage low after a year ?
i also have added relays , one for the headlight , ( to maybe save the headlight on/off switch ) AU models have different switches to the US ones.
and one to feed the ignition, first the Dyna and now the C5.
not sure i fully understand " the pickup is another day to replace for now wasted spark " ?
i have never used the Accel coils but they do have a good reputation.
good video . :clapping: i mounted my Dyna coils a bit different. still used the stock mounts, but put them on the front side of the coil to bring them closer to the frame. here
are a few pics of the coils i stared with and one of the relay wired in and mounted.
image.php

image.php

image.php
 
[url=https://www.classicgoldwings.com/forum/viewtopic.php?p=155241#p155241:1q7c2dit said:
aussiegold » Sun Aug 02, 2015 10:15 pm[/url]":1q7c2dit]
[url=https://www.classicgoldwings.com/forum/viewtopic.php?p=155079#p155079:1q7c2dit said:
CRAFTMAN6001 » Sat Aug 01, 2015 11:57 am[/url]":1q7c2dit]
Just my 2 cents here. I had installed the Dyna coils new on my 77. Here is what happened, I checked the voltage it was low after a year with them coils (Dyna) they crapped out. I took the black wire that fed the coils and put it on the low side of a 5 pin relay. Took the other side of the low side to ground. New wire from battery to high side of relay then out high side to coils. I'm really not a big fan of Dyna coils but the pickup is another day to replace for now wasted spark. I did use the ACCEL coils and they (IMO) have way more spark then Dyna coils. no choking at all ever. Cleaner plugs with no sign of lean burn on them. Mounted on the stock brackets..

https://www.youtube.com/watch?v=rLuCH5cjY24

https://goo.gl/photos/CrpVjgQDxxLh9xHL9
thats the first time I've heard of Dyna coils failing. where was the voltage low after a year ?
i also have added relays , one for the headlight , ( to maybe save the headlight on/off switch ) AU models have different switches to the US ones.
and one to feed the ignition, first the Dyna and now the C5.
not sure i fully understand " the pickup is another day to replace for now wasted spark " ?
i have never used the Accel coils but they do have a good reputation.
good video . :clapping: i mounted my Dyna coils a bit different. still used the stock mounts, but put them on the front side of the coil to bring them closer to the frame. here
are a few pics of the coils i stared with and one of the relay wired in and mounted.
image.php

image.php

image.php
I'm thinking what killed mine was a (low voltage drop) Key Word/ in the harness but I'm not 100 sold on this. All I can tell you is they could throw spark out the end of the boot to the bolt. one couldn't jump spark with a screwdriver shoved up it grounded to a bolt hit the key then pull away. so yeah the both died. there crap never will buy them again.. and buy saying this is to say Accel is a hotter spark no need for choking ever. WAY HOT.. clean burn worth the money. as far as how you mounted them upsidedown as long as they work happy riding for you..Pickup is dyna on cam rotor. Southern term here down South :eek:k: Ps there on my 78 typo there ,,Ha,,
 
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