A strong, reliable spark is the foundation of smooth engine performance, and the Yamaha Ignition Coil Assembly (6E5-85570-11-00) is built to deliver just that. This coil is responsible for transforming voltage into the high-energy spark needed for clean, efficient combustion. When an ignition coil starts to fail, misfires, rough idling, and sluggish acceleration become all too familiar. Swapping in a genuine Yamaha replacement ensures consistent spark delivery, keeping your outboard firing on all cylinders.. Engineered for Performance & Durability:. OEM-Precision Fit - Designed specifically for Yamaha outboards to ensure seamless installation and peak compatibility.. High-Output Voltage - Delivers a strong, consistent spark for smooth starting and optimal fuel combustion.. Built for Marine Environments - Resistant to heat, moisture, and corrosion, making it ideal for saltwater and freshwater use.. Ideal for:. Restoring ignition efficiency and preventing misfires, hesitation, or hard st