Mini Dual Fire Ignition Coil with Boyer 12v Micro-MK IV

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Norton

Norton

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Any reason I couldn't use this 4 ohm Electronic Mini Dual Fire Ignition Coil (http://tinyurl.com/pwnnbfl) with the Boyer 12v Micro-MK IV? Does this basic Boyer allow the use of an Electronic Mini Dual Fire coil? It's 4 ohm.
 
Norton said:
Any reason I couldn't use this 4 ohm Electronic Mini Dual Fire Ignition Coil (http://tinyurl.com/pwnnbfl) with the Boyer 12v Micro-MK IV? Does this basic Boyer allow the use of an Electronic Mini Dual Fire coil? It's 4 ohm.
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Maybe, but there is more to a coil than it's DC resistance. It is the impedance that you would need to know as that determines the necessary charge time [dwell].

Some coils give a spec for impedance but most don't. If you have an LC meter you can compare them.

Mismatch of the impedance may cause damage to either the coil or module or just a weak spark. Jim
 
Every one of my vintage British bikes including my Commando use the HD dual fire coils with electronic ignitions....works great,never had an issue.....PhillySkip
 
phillyskip said:
Every one of my vintage British bikes including my Commando use the HD dual fire coils with electronic ignitions....works great,never had an issue.....PhillySkip
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Thanks guys. Skip, I have also always used HD dual fire coils with electronic ignitions, but I hadn't used the Boyer 12v Micro-MK IV before and I remember reading somewhere that the MK IV was for stock 12V or two 6V coils only. Just want to be sure. Do you run the Boyer 12v Micro-MK IV with a HD dual fire coil? I have an email into Boyer as well.
 
I put one on mine with the older Boyer and the coil got hot and started to leak oil. So, I took it off.
 
I just heard back from Boyer and their response was positive.
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Yes that’s fine but it must be mounted by its metal bars to take any heat away from its centre core.

Regards,
Tech dept

Boyer Bransden Electronics Ltd
Frindsbury House
Cox Street
Detling
Maidstone
Kent
ME14 3HE

Tel: 0044 (0)1622 730939
Fax: 0044 (0)1622 730930
Website: www.BoyerBransden.com
 
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