TOPIC: Ballast resistor 1970 commando

Ballast resistor 1970 commando 22 May 2017 08:14 #1

Bthor77 Topic Author Offline New Member Posts: 12 Thank you received: 1	At the risk of being an ignorant person.. Where is the ballast resistor on a 1970 commando? It is not by coils. Should I connect the EI to a power source that is live only when key is on? Check this box to be notified of replies to this topic. Note: BBcode and smileys are still usable.
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Ballast resistor 1970 commando 22 May 2017 08:45 #2

dynodave
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dynodave
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Ballast resistor started in 71 along with 6V coils. I assume to coincide with the intended electric start feature that failed to be implemented. Norton never change back to 12 coils and finally used the ballast bypass in 75.
So all prior to 71 are dual 12V coils so no ballast.
EI should definitely be switched on/off by key.
Dual 12v in series can work but is considered as marginal. a dual lead 12v or 2 six volt coils is normally part of the conversion.

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Dave Comeau
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Ballast resistor 1970 commando 22 May 2017 11:36 #3

Bthor77 Topic Author Offline New Member Posts: 12 Thank you received: 1	Thank you Dave!! Check this box to be notified of replies to this topic. Note: BBcode and smileys are still usable.
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Ballast resistor 1970 commando