The Yamaha 4LD Outboard, a robust outboard motor from 1990, represents a significant advancement in marine propulsion. Engineered for reliability and performance, this model is designed to provide dependable power for a wide range of boating applications. Its construction emphasizes durability and efficiency, ensuring a consistent and powerful operation on the water.

This comprehensive Service Repair Maintenance Manual in English provides essential information for the upkeep and repair of your Yamaha 4LD Outboard. It covers crucial areas including general information, periodic inspections and adjustments, fuel and electrical systems, power and lower units, bracket assembly, and troubleshooting. Detailed instructions, diagrams, and specifications are included to assist owners and technicians in maintaining the optimal performance and longevity of the outboard motor.