Best coil for a B-44 whith Boyer ignition?

[woodrow]

I would like to know the best coil for this B 44 whith a boyer setup.
12 V ?
6 V ?
Best doner coil from jap bike?
I plan to wire it 12 volts neg earth.
The paper from Boyer did not say 6 or 12..
This bike is not a race bike or any thing I am looking for the most reliable coil for the money or easy to rob from jap bike.........Woodrow

[L.A.B.]

Boyer Bransden ignition systems are normally intended to work with the original coil (or coils) setup, unless they say otherwise (as with some of their twin/triple cylinder kits).

So as it's probably a 12 Volt (the Triumph/BSA '64-on?) BB kit then you are likely to need a 12 V coil, although I don't know which Japanese type you would need but probably one from a points ignition rather than an electronic ignition model as the coil resistance is important for the BB system to work properly I think?

If you phone Boyer Bransden Electronics 01622 730939 (if you are in the UK), +44 1622 730939 (if you are outside the UK) between 9AM - 5PM (UK time) they are normally very helpful.

  

[TBS]

I would fit a 12v coil if you have a 12v system. The only time you would use 6v coils on a 12v system is for a high performance engine eg Bonneville, and then connect them in parallel eg they both work at the same time 2 x 6v = 12v