Q:
the engine is a BSA 650 Lightning with a thunderbolt intake ( single carb) I have an Acelle 140403S coil and a Boyer Brandson Ignition for my 67 BSA. Also running a Mikuni VM32-33. Stock jets are 200 main and 35 pilot. I have recently ordered copper core plug wires from y all , and I have also ordered a set of pilot and main jets kit from mikuni. This engine runs so rich it is a soot monster. My plan is to run a 25 pilot and around 180 main to try to lean it out. The reason for my question is the coil and wire combination options do not give specific information per proper coil and wire match. The Accele claims is it high output so it should work with suppression wires included with kit, while I just bought low resistance (copper) wires per recommendation from the Ignition manufacturer. Bottom line is I want a coil to work with my new copper core wires and provide enough spark to ignite the fuel. It would not bother me to scrap the Acelle if I knew the replacement was proper.
A:
The coil requirements for a Boyer are as fololows
For low compression engines, two 12 volt coils (4 Ohm Resistance) in series are
satisfactory, but for racing and high compression engines two 6 volt coils (2 Ohm
resistance) in series, or one 12 volt 3.5 ohm or more primary winding resistance
dual output coil will give the best results
I have used this particular coil with a Pazon ignition and it worked just fine