Sorry man as I said the other day that problem has me stumped too.The only thing I can come up with,(Like if was on a car)would be a lose wire.I have noticed on my Twin I have a wire that goes up under the flywheel.I'm assuming that goes to some sort of ignition chip. Perhaps that has come a little lose.It would take much to come lose,and cause a Similar problem. Have you checked all the wiring.I'm just throwing ideas out there.
