This factory service manual covers MerCruiser Sterndrive (MCM) MX 6.2 MPI, MerCruiser Inboard (MIE) MX 6.2 MPI, and MerCruiser Ski MX 6.2 Black Scorpion marine engines, all with serial numbers 0L680003 and above. These engines feature a GM V8 architecture with a 377 CID (6.2L) displacement and a fuel injection system, designed for reliable performance in marine applications. This manual is intended to assist in keeping these MerCruiser engines in top operating condition. The purpose of this English-language manual is to provide comprehensive guidance for the service, repair, and maintenance of the specified MerCruiser marine engines. It details procedures for disassembly, assembly, inspection, adjustment, and diagnostics, with specific focus on the fuel injection system. Included are essential technical specifications, maintenance guidelines, and supplementary materials such as photos, illustrations, and wiring diagrams, making it an indispensable resource for dealers and service mechanics.