Mercury Four stroke 4 5 6 8 9.9 15 Mariner Service Repair Manual

Mercury Four stroke 4 5 6 8 9.9 15 Mariner Service Repair Manual

Loaded with illustrations, instructions, photos, and diagrams, complete to service and repair your Mercury. Read and print pages, or copy the entire manual to your hard drive.

Thousands of Pages

Models Covered :  

• 4  Serial Number Starting: 0R000001
• 5  Serial Number Starting: 0R000001
• 6  Serial Number Starting: 0R000001
• 8  Serial Number Starting: 0H000058
• 9  Serial Number Starting: 0H000058
• 9/15  (323 cc) Serial Number Starting: 0G590000
• 9/15 Bigfoot  (323 cc) Serial Number Starting: 0G590000

Manual Covers :

Information:

• Specifications
• Maintenance
• General Information
• Outboard Installation

Electrical:

• Ignition
• Charging and Starting System
• Timing, Synchronizing and Adjusting
• Wiring Diagrams

Fuel System:

• Fuel Pump
• Carburetor
• Emissions

Powerhead:

Mid-Section:

• Clamp/Swivel Brackets and Drive Shaft Housing
• Power Trim

Power Unit:

Attachments/Control Linkage

Manual Starter

This manual is the same as the manual used by workshops. Service Manual contains detailed instructions and step by step diagrams for all workshop procedures.

 Language: English 
Format: PDF – Indexed and Searchable

COMPATIBLE WITH ALL WINDOWS & MAC COMPUTERS 
(WINDOWS 11, WINDOWS 10, WINDOWS 8 ETC.) 

Windows/Mac/Tablet/Phone Friendly

• Mercury 4 hp: Featured a built-in 0.3-gallon fuel tank and six trim positions, plus a shallow-water drive.
• Mercury 5 hp: A single-cylinder engine that offered more power, but was still lightweight. It often included both an integrated fuel tank and an external fuel tank connection.
• Mercury 6 hp: A single-cylinder, carbureted engine with a larger 123cc displacement (on many models) than the 5 hp, providing slightly more power. 

• Mercury 8 hp: An 84-pound, twin-cylinder engine that offered CDI ignition with electronic spark advance and a multifunction tiller handle.
• Mercury 9.9 hp: A slightly more powerful, two-cylinder version of the 8 hp. Early four-stroke models in this range were carbureted, while later versions (post-2005) received EFI.
• Mercury 15 hp: The most powerful of the portable line, this two-cylinder engine was also available in carbureted versions and later featured EFI for better starting and performance. 

• Quiet, smoke-free operation.
• CARB three-star, ultra-low emissions ratings (on later models).
• Electronic CD ignition for easy starts. 

• Transition to four-stroke: During this period, Mercury phased out most of its two-stroke portable engines and transitioned to the more fuel-efficient and environmentally friendly four-stroke technology.
• Improved features: Later models saw refinements in design for easier carrying, better fuel efficiency, and cleaner emissions.
• Propeller options: The larger 8–15 hp models often offered different propellers to optimize performance for either speed or thrust.
• EFI Introduction: After 2005, Mercury began to offer EFI on many of its small four-stroke models, starting with the 9.9 hp and 15 hp versions.