dyna coils with points


Information and questions on GL1000 Goldwings (1975-1979)
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ntintruder
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Location: Willoughby,OH
Motorcycle: 1976 GL1000
1972 CB750K2
1977 CB750f

dyna coils with points

Post by ntintruder »



Is the ballast resistor necessary if stock coils are replaced with dyna coils?


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dingdong
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Motorcycle: 1976 gl1000
1993 gl1500A
2004 NRX1800 Rune SOLD

Re: dyna coils with points

Post by dingdong »

Shadowjack
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Motorcycle: 1977 GL1000
1975 CB750
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Re: dyna coils with points

Post by Shadowjack »

Not sure what benefit using aftermarket coils with points would give, unless the originals were bad in some way. The points will only take so much current before they start to burn.
Because battery voltage drops when cranking, the standard coils are made pass a certain current at about 9 volts. The ballast is in there to keep from burning up the points with excessive current at 12 volts, during normal running. It's bypassed when the starter button is pushed so it doesn't drag the voltage down even more.
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823JIM
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1978 KZ650 (needs restoring)

Re: dyna coils with points

Post by 823JIM »

Her is a link that may just answer your question.

http://www.randakksblog.com/ballast-res ... procedure/
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Fred Camper
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Re: dyna coils with points

Post by Fred Camper »

Only with Dyna Coils and Dyna Ignition can the ballast resistor be bypassed. With just Dyna Coils or just Dyna Ignition, the ballast resistor needs to stay to protect the circuit for long life. It would work for a short while that way, but you better have a friend on call.
You can open the plug gap a bit with Dyna Coils.

Always remember that 40 year old Coils may have issues in the rain.


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