The pulse width on the orange wire is likely too short for your digital meter to register signal voltage. This does not mean that you are receiving voltage to the coil; it means that the proper test procedure is not being used.

I do not know the correct resistance values for your ignition coil, but measure both the primary and secondary circuit resistance.

Disconnect the ignition coil from all of its wires and take it inside. The coil must be at room temperature for about 30 minutes before you obtain the readings.

If your meter does not auto-range set the resistance value for (ohms x 1). Connect one lead to the base of the mounting bracket; connect the other lead to the orange wire terminal. This is the primary circuit.

Set the meter to (ohms x 1k) and measure between the base of the mounting bracket and the plug lead. This is your secondary circuit.

Measure the resistance of your spark plug cap (if it is a separate piece). Set your meter for (ohms x 1k).

What are the above readings?