hi bushy,
if the motor is running , the not stopping wont be a problem with the coil.
it will be more with the throttle adjustment, (the plate below the throttle with the screw in it),
for instance, if the throttle hits the top of the plastic housing before it causes the wires in the back of the
carby to touch then it wont stop.....
or the earth lead is not connected to the coil.
theres not much else it could be.
cheers, pete
