This Service Repair Manual covers the Mercury MerCruiser GM V6 262 CID (4.3L) engine manufactured in 1998. This V6 gasoline engine features a displacement of 262 cubic inches (4.3 Liters), a bore of 4.00 inches, and a stroke of 3.48 inches, with a typical compression ratio of 9.4:1. It delivers approximately 185-210 horsepower and 250-270 lb-ft of torque, depending on the specific application. Designed for marine sterndrive or inboard applications, this engine is engineered for reliable performance on the water. This comprehensive English language manual provides detailed information essential for the maintenance and repair of your Mercury MerCruiser engine. It includes procedures for cooling systems, fuel and ignition systems, electrical systems, drive shafts, and gear cases. Furthermore, it covers engine specifications, tune-up procedures, timing, torque specifications, and troubleshooting guidance. The manual also details storage and winterization processes, and includes wiring diagrams to assist owners, mechanics, and technicians in ensuring the longevity and optimal performance of their 1998 Mercury MerCruiser GM V6 262 CID (4.3L) engine.