Yamaha Base Magneto - 6FM-85561-00-00. Efficient Power Generation for Yamaha Engines. The Yamaha Base Magneto - 6FM-85561-00-00 is designed to deliver reliable electrical power for your Yamaha engine's ignition system. This high-quality component ensures smooth engine starts and optimal performance, whether you're cruising on the water or embarking on a long voyage. With this magneto, you'll experience improved engine reliability and long-lasting power generation, making it a vital part of your