If you're experiencing issues with your horn on your Honda XR200 when the lights are on, it is possible that the fluctuating AC voltage from the lighting coil is causing the problem. Adding a capacitor to the horn circuit can help stabilize the voltage and improve the performance of the horn. Here's a general guideline on how to proceed:
Choose the Capacitor: Selecting the right capacitor value depends on the specific electrical characteristics of your horn and the voltage fluctuations you are experiencing. Capacitors used in similar situations typically have values in the range of 1000µF to 2200µF and voltage ratings suitable for your application.
Wiring Configuration: Connect the capacitor in parallel with the horn. This means that one terminal of the capacitor should be connected to the positive terminal of the horn, and the other terminal of the capacitor should be connected to the positive wire coming from the lighting coil.
Mounting and Installation: Ensure that the capacitor is properly mounted and insulated to avoid any interference with other components or wiring. Securely fasten the capacitor in a suitable location, preferably away from excessive heat or vibration.
Adding a capacitor to the horn circuit should help stabilize the voltage and minimize the interference caused by the lights. However, it's important to note that specific electrical characteristics may vary, and it is recommended to consult a professional mechanic or an experienced electrical technician for guidance tailored to your specific motorcycle model and situation.
Additionally, it's advisable to refer to the wiring diagram and technical documentation for your Honda XR200 to ensure proper understanding and application of the modifications.