Model 9.9

This service manual covers Mercury Jet Outboard engines, spanning multiple generations and power ranges from 100-140 HP, and also including 60, 65, 75, 80, 100, 125, 135, 140, 200, 225, and 250 DFI models. These outboard jet engines are engineered for reliable performance in various marine applications. The manual details various ignition systems, including Capacitor Discharge Ignition (CDI), Alternator Driven Ignition, and Digital Inductive Ignition (DI), as well as fuel systems such as carbureted, Electronic Fuel Injection (EFI), and Direct Fuel Injection (DFI). Specific attention is given to power head and lower gearcase/jet drive unit maintenance, ensuring the longevity and optimal function of these critical components.

This manual covers Mercury Outboard motors manufactured between 1986 and 2003. These 2-stroke engines, available in 6, 8, 9.9, 10, and 15 horsepower, are designed for reliable performance in various marine applications. They feature water-cooled systems, electric or manual starting, and a Forward-Neutral-Reverse transmission. Specific models may utilize carburetor or electronic fuel injection, and ignition systems typically employ CDI technology. The engineering emphasizes durability and efficiency, making these outboards a trusted choice for boaters.

This service repair manual covers the Mercury Mariner 8 / 9.9 (4-Stroke) outboard engine, identified by serial number 0H000058 and onward. Designed for reliable performance, this water-cooled, 4-stroke outboard engine offers 8 to 9.9 horsepower, making it suitable for a variety of marine applications. Its robust construction and efficient engineering ensure dependable operation for boaters seeking quality and longevity on the water.

This service repair workshop manual covers Mercury/Mariner 9.9/15 HP outboard engines manufactured between 1998 and 1999. These 4-stroke engines, available in 9.9/15 HP and 9.9/15 Bigfoot configurations, feature a 323 cc displacement and DOHC design. Fuel delivery is managed through multi-point sequential electronic fuel injection (EFI) or carburetors on certain models, while water cooling ensures efficient operation. The engines offer both electric and manual starting systems and utilize a Forward-Neutral-Reverse transmission with standard or counter-rotating propeller shaft options.

This manual covers the Mercury 30/40 FourStroke outboard motor, also identified as the Mariner model, produced from 1999 onwards, starting with serial number 0G760300. These reliable 4-stroke engines offer 30 HP and 40 HP options, designed for a wide range of marine applications. Their robust engineering ensures dependable performance on the water, making them a trusted choice for boaters seeking efficiency and power.

The Mercury/Mariner 9.9/15 HP 4-Stroke Outboard, produced between 1998 and 2001, represents a robust and reliable option for marine propulsion. These outboards are engineered with a 2-cylinder, DOHC 4-stroke engine featuring a displacement of 323 cc, designed to deliver consistent performance for a variety of boating applications. Depending on the specific model, they utilize multi-point sequential electronic fuel injection or carburetor systems, water cooling, and a wet sump lubrication system, ensuring efficient operation and longevity. With electric or manual starting options and compatibility with 87-93 octane gasoline, these engines are built for dependable service on the water.

This manual covers Mercury/Mariner 9.9/15 and 9.9/15 Bigfoot 4-stroke outboard engines, designed for marine applications. These gasoline-powered engines, with a displacement of 323 cc, are engineered for reliable performance on the water. This service and repair manual is intended for models with serial numbers starting from 0G590000 in the United States.