This requires a more complicated answer. You need to get a manual for your engine to determine your trigger resistances and need a DVA adapter for your DMM to measure your trigger voltages for your engine. Triggers are very narrow, voltages in the 100s of volts, spikes occurring at the rate of the number of cylinders of the engine X the engine rpms. My manuals are for 75 thru 125 HP 2 stroke engines . Since the numbers in my manuals are different for the different HP engines, I assume that for your engine your numbers will be different from what I could tell you.
Since the triggers are thin and the rest period is 1000X or so, you need something to flatten out the trigger so that the DMM can read it. That is what the DVA does. It captures the trigger through a diode, stores it in a capacitor (condenser type thing) considering 100's required to get the capacitor charged to the peak voltage, taking several seconds of running to get charged up, and a large resistor included to allow the capacitor to bleed off the charge when unused, or input signal amplitude changes.
Expect voltages in the 150-350 volt range, a function of where measured and engine rpms. Then there is the switchbox bias voltage measured at less than 50 volts.
