New coils with old points


Information and questions on GL1000 Goldwings (1975-1979)
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clhiller
Posts: 6
Joined: Fri Jul 06, 2018 9:48 pm
Location: Leduc, Alberta
Motorcycle: 1978 GL1000 Goldwing

New coils with old points

Post by clhiller » Thu Oct 04, 2018 11:04 am



I purchased a DynaS and 3 ohm Dynatek coils for my '78 GL1000. I installed the coils, (removing the ballast resistor) and the DynaS. I could never get it to run right, #3 and #2 cylinders would work/not work intermittently. Timed and retimed. New timing belts are spot on. Carbs have been rebuilt with Randakks kit/video. They have been out and checked twice, so they are good. I put the points back on the bike and it runs fine. I will fiddle with the DynaS more this winter and figure out what is going on, but for now, can I run with the points and new coils with no ballast resistor?

Second question. There are a couple links where people are troubleshooting DynaS installs with similar symptoms to mine, but they end with no resolution/answer. Did they give up? Did they find the answer and not bother posting it? Inquiring minds want to know!


Last edited by clhiller on Thu Oct 04, 2018 4:48 pm, edited 1 time in total.

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terryt
Posts: 231
Joined: Mon Jul 23, 2012 4:52 pm
Location: United Kingdom
Motorcycle: 1979 gl1000 trike
1989 gl1500 trike

Re: New coils with old points

Post by terryt » Thu Oct 04, 2018 12:10 pm

On my 1978 I had the same problem I could not get the split timing set up right. the only way I could get it right was to file some off one pickup to close then up so I could time it. I believe this only happens on the 78/9 models as the cam timing is different.

clhiller
Posts: 6
Joined: Fri Jul 06, 2018 9:48 pm
Location: Leduc, Alberta
Motorcycle: 1978 GL1000 Goldwing

Re: New coils with old points

Post by clhiller » Thu Oct 04, 2018 12:36 pm

Thanks.
I was able to get the timing dead on. I didn't notice any difference (split timing) with the DynaS. It was dead on for both cylinders and both modules. When I put the points back in, I did the split timing. I had 12.3V going to the Dyna. Valve clearances were set to.005". I racked my brains trying to figure it out. After the snow flies, I will put it back on and redo all the recommended troubleshooting to ensure the modules are good. I just want to put some miles on it now.

clhiller
Posts: 6
Joined: Fri Jul 06, 2018 9:48 pm
Location: Leduc, Alberta
Motorcycle: 1978 GL1000 Goldwing

Re: New coils with old points

Post by clhiller » Thu Oct 04, 2018 12:37 pm

I had 148-152psi compression.

phoenixtubs
Posts: 46
Joined: Mon Jun 01, 2015 2:56 pm
Location: Chicago, IL
Motorcycle: 1985 Interstate
1987 VT700C Shadow
1978 GL 1000

Re: New coils with old points

Post by phoenixtubs » Thu Oct 04, 2018 2:01 pm

I have a 78 and I am running dyna coils with points. Came that way when I bought it and it's running great.

clhiller
Posts: 6
Joined: Fri Jul 06, 2018 9:48 pm
Location: Leduc, Alberta
Motorcycle: 1978 GL1000 Goldwing

Re: New coils with old points

Post by clhiller » Thu Oct 04, 2018 2:32 pm

ballast resistor or no?

phoenixtubs
Posts: 46
Joined: Mon Jun 01, 2015 2:56 pm
Location: Chicago, IL
Motorcycle: 1985 Interstate
1987 VT700C Shadow
1978 GL 1000

Re: New coils with old points

Post by phoenixtubs » Thu Oct 04, 2018 2:52 pm

clhiller wrote:
Thu Oct 04, 2018 2:32 pm
ballast resistor or no?
I am not running a ballast resistor

clhiller
Posts: 6
Joined: Fri Jul 06, 2018 9:48 pm
Location: Leduc, Alberta
Motorcycle: 1978 GL1000 Goldwing

Re: New coils with old points

Post by clhiller » Thu Oct 04, 2018 3:13 pm

Ok, thanks. I took it for a short run and it seemed to work fine, but I don't want to burn out brand new coils.

phoenixtubs
Posts: 46
Joined: Mon Jun 01, 2015 2:56 pm
Location: Chicago, IL
Motorcycle: 1985 Interstate
1987 VT700C Shadow
1978 GL 1000

Re: New coils with old points

Post by phoenixtubs » Thu Oct 04, 2018 3:29 pm

Here's a pic:



Old Fogey
Posts: 791
Joined: Fri Oct 30, 2009 2:09 am
Location: Glasgow Scotland
Motorcycle: 1976 GL1000
1979 GL1000
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Re: New coils with old points

Post by Old Fogey » Wed Nov 07, 2018 7:04 am

I think the black Dyna coils are 5ohms. They can be used without a ballast. 3ohm coils are green.

This is from the Dyna site:
Dyna Ignition Coils are available in a wide range of primary resistances to match the requirements of most ignition systems. Before selecting a coil, check the coil primary resistance requirements as specified by the manufacturer of the ignition being used. For breaker points ignitions use 5.0 ohm coils or 3.0 ohm coils with a 1 to 2 ohm ballast resistor in series with the +12 volt supply wire to the coil. Dynatek cannot be responsible for ignition or coil problems that result from using a coil of incorrect primary resistance with a particular ignition system


'Impossible' is just a level of difficulty! The only stupid question is the one you didn't ask first!

( Seriously, you haven't read all 115 pages of my http://www.wingovations.com website ?? :shock: )

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