This manual covers the 2002 Mercury Marine 240 HP Jet Drive EFI, a powerful and reliable marine engine designed for exceptional performance. Engineered with advanced EFI technology, this model delivers efficient power delivery and responsiveness for a superior boating experience. Its robust construction and jet drive system are built for durability and optimal handling in various water conditions, making it a trusted choice for demanding applications. This comprehensive service repair manual provides detailed instructions for the maintenance, repair, and diagnosis of your Mercury Marine 240 HP Jet Drive EFI. It includes essential specifications, routine maintenance procedures, and in-depth troubleshooting guidance. Coverage extends to critical systems such as the fuel injection, ignition, electrical, cooling, and pump unit, with clear diagrams and explanations designed to assist professional technicians, mechanics, and DIY enthusiasts in keeping the engine in optimal working condition.