79 gl1000 no spark...


Information and questions on GL1000 Goldwings (1975-1979)
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Dieseldaddy
Posts: 2
Joined: Mon Jul 13, 2020 8:22 pm
Location: United States
Motorcycle: 1979 Goldwing GL1000
1986 Honda Rebel cmx450
1982 Yamaha xj750 Maxim

79 gl1000 no spark...

Post by Dieseldaddy »



Hi guys.

I'm (still) trying to get my new-to-me 79 GL1000 up and running after PO had it sitting in barn for 10yrs. (Free)

I think we are close... however I get absolutely NO SPARK from any plug, either side. All 4 brand spankin new plugs. So I open the cover to check the points and I see the upgraded dynas sitting in there. Cool. Now I understand why the resistor was bypassed. But why no spark??


I tested the resistance of 1/2 and 3/4 and got 25.3 and 28.0 respectively. Haynes manual in hand but cant find what it's supposed to be but pretty sure they aren't supposed to be that far apart. Could it be the condenser? Dont laugh... I'm new to the electronic side of these. What should be my next diagnostic steps?

Please help! I want to get her on the road this summer!!

Thanks.


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Maz
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Location: Kent, UK
Motorcycle: 1975 GL1000K1
1976 CB500T
1979 CB750L
1990 Yamaha FJ1200
1993 Suzuki GS500E

Re: 79 gl1000 no spark...

Post by Maz »

The condenser isn't needed with the Dyna system. It's only needed with contact breaker points. Have you got 12v at the coils (black wire), with ignition switched on? Is the kill switch in the middle position? Are the coils connected to the Dyna (blue and yellow wires)? Is there 12v and ground at the Dyna module? All easy to check with a meter or test light.
Maz
Ironically, Common Sense is the LEAST common of all senses!
Dieseldaddy
Posts: 2
Joined: Mon Jul 13, 2020 8:22 pm
Location: United States
Motorcycle: 1979 Goldwing GL1000
1986 Honda Rebel cmx450
1982 Yamaha xj750 Maxim

Re: 79 gl1000 no spark...

Post by Dieseldaddy »

I will check these and get back. Thanks for the quick response!!
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dingdong
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Joined: Thu Apr 08, 2010 8:35 am
Location: Oklahoma City
Motorcycle: 1976 gl1000
1993 gl1500A
2004 NRX1800 Rune SOLD

Re: 79 gl1000 no spark...

Post by dingdong »

Explain how the resistor is bypassed...

https://www.randakksblog.com/dynas-inst ... da-gl1000/


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