If the DuraSpark came from the factory, it would be there.

However, since you modded the B-Twice to add DuraSpark, it's possible that you may have missed adding that wire.

If you were to put a multi-meter (reading voltage) on the "BAT" side of the coil (other wire of the voltmeter to ground) what would the voltage be during "CRANK"? If it's next-to-nothing, there's your problem. If it's close to battery voltage, that's not your problem.

The engine WILL run normally, once started, right?

Some testing is in order for you......

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