What is the measurement method for determining the quality of a motorcycle trigger?
2 Answers
Measuring the electrical values of a trigger generally falls between 0.01-0.09. You can use a multimeter to measure resistance, voltage, or current with the probes, and compare the displayed data. Below are the relevant details: 1. Different models: Coil resistance varies among different vehicle models and brands. The method for measuring the trigger is not limited to measuring resistance; you can also measure the trigger current for more accuracy. Set the multimeter to the smallest current measurement range. Connect to the trigger's positive terminal (for two-wire triggers, these are the positive and negative terminals). Then start the engine. If the needle moves, it indicates the trigger is in good condition. 2. Inter-turn short circuit: Some triggers with poor craftsmanship or materials are highly sensitive to temperature due to possible inter-turn open circuits or short circuits. These conditions are difficult to detect with a standard multimeter. It is recommended to have a professional mechanic handle such cases.
I've been repairing motorcycles for decades, and the key to testing the trigger's condition is using a multimeter to check resistance first. Set the multimeter to the ohmmeter range, connect the red and black probes to the signal wire terminals at both ends of the trigger, and compare the measured resistance value with the manual's specifications, typically between 5 to 10 kilo-ohms. If there's no data available, the resistance should remain stable under normal conditions. If there's a reading but it's infinite or zero, the trigger is burnt out. You should also test the voltage output: when starting the engine, connect the multimeter to the output wire to measure voltage—there should be fluctuations. Common symptoms of a faulty trigger include unstable ignition, a clattering sound when starting the bike, or lack of power while riding. Checking for loose or corroded connectors is also crucial, as dust and corrosion can cause connection failures. Regularly measuring resistance can help detect issues early, saving time and money on replacement parts. Remember, the trigger controls the ignition timing, and not fixing it properly affects the entire bike's performance.
