This comprehensive service repair manual covers the Mercury 2 Stroke 150, 175, and 200 EFI outboard motors. Designed for reliability and performance, these engines represent a significant advancement in marine propulsion, offering robust engineering and efficient operation for a variety of watercraft and boating applications. Their advanced fuel injection systems ensure optimal power delivery and fuel economy, making them a preferred choice for both recreational and professional use. The purpose of this manual is to provide detailed information for the maintenance, repair, and servicing of your Mercury outboard motor. It includes essential technical specifications, step-by-step repair procedures, diagnostic troubleshooting guides, and important safety precautions. By following the instructions within this manual, owners, technicians, and mechanics can ensure the longevity, optimal performance, and safe operation of their Mercury 2 Stroke EFI engine.