What is the method for measuring the condition of a motorcycle trigger?
2 Answers
Measuring the electrical values of the trigger generally falls between 0.01 and 0.09. You can use a multimeter to measure resistance, voltage, or current with the probe. Compare the displayed data accordingly.
I'm particularly fascinated by motorcycles and have been tinkering with engines in the garage since childhood. Testing whether a trigger is good or bad is actually quite straightforward with a multimeter. First, turn off the ignition and disconnect the trigger harness—usually located near the flywheel. Use the multimeter's ohmmeter setting to directly measure the resistance between the two pins. Check the manual for the standard value—for example, my old Harley should read between 100 and 300 ohms. If there's no reading or it shows infinity, the trigger is faulty. Another reliable method is to measure the output voltage while starting the engine. Use the DC voltage setting and connect the leads—when you rotate the engine, there should be a pulsing voltage. If there's none, the trigger is dead. I once overlooked a visual inspection where corroded terminals caused no signal, so now I always carefully check for cracks or burn marks. If you're still unsure, the safest bet is to borrow a known-good one of the same model and try it out. If this part fails, the entire ignition system goes haywire, and the spark plugs won't fire. I recommend beginners perform regular maintenance to avoid small issues turning into big problems.
