Product Details
Repair Manual (B721) by Clymer®. Includes Electric Motors. This Mercury manual is 368 pages. Clymer Marine manuals are the #1 source for DIY maintenance, troubleshooting and repair. With step-by-step procedures combined with detailed photography and extensive use of exploded parts views, Clymer manuals are a must-have tool for the do-it-yourselfer.
Notes
- Covers Mercury 1972-1989 3.5 hp, 3.6 hp, 4 hp, 4.5 hp, 5 hp, 6 hp, 7.5 hp, 8 hp, 9.8 hp, 9.9 hp, 15 hp, 18 hp, 20 hp, 25 hp, 35 hp, 40 hp engines.
Features
- Designed to help you take care of your vessel
- Will help you stay on the water longer
- Written by boat repair professionals
QUICK REFERENCE DATA
CHAPTER ONE / GENERAL INFORMATION
Manual organization / Notes, cautions and warnings / Torque specifications / Engine operation / Fasteners / Lubricants / Gasket sealant / Galvanic corrosion / Protection from galvanic corrosion / Propellers / Specifications
CHAPTER TWO / TOOLS AND TECHNIQUES
Safety first / Basic hand tools / Test equipment / Service hints / Special tips / Mechanic's techniques / Specifications
CHAPTER THREE / TROUBLESHOOTING
Operating requirements / Starting system / Charging system / Ignition system / Phase-maker ignition troubleshooting / Thunderbolt flywheel CD ignition troubleshooting / Fuel system / Engine
CHAPTER FOUR / LUBRICATION, MAINTENANCE AND TUNE-UP
Model changes and redesignation / Lubrication / Fuel selection / Gasahol / Recommended fuel mixture / Fuel mixing procedures / AutoBlend oil injection / Lower drive unit lubrication / Salt water corrosion of gear housing bearing carrier and nut / Winter storage / Anti-corrosion maintenance / Complete submersion / Engine flushing / Tune-up / Compression test / Spark plugs / Lower unit and water pump check / Fuel system service / Fuel line service / Fuel filter service / Fuel pump / Ignition service / Maker-Point ignition / Battery, Starter and solenoid (electric start models only) / Timing, synchronization and adjustment / On-boat performance test / Specifications
CHAPTER FIVE / TIMING, SYNCHRONIZATION AND ADJUSTING
Engine timing / Synchronizing / Required equipment / Mercury 3.5 and 3.6 hp / Mercury 40 and 2-cylinder 4 hp with Thunderbolt breakerless ignition / Mercury 45, 4.5 and 4 (1986-1987) / Merc model 40, 75, and 110 with Phase-maker ignition / Merc 4 and 5 hp (1988-on) / Merc model 75 and 7.5 hp (through serial No. 5226934); Merc model 110 and 9.8 hp (through serial No. 5206549) / Mercury 7.5 hp (above serial No. 5226934); Mercury 9.8 hp (above serial No. 5206549) / Mercury 6, 8, 9.9 and 15 hp / Mercury 18 and 25 hp (1979-1984) / Mercury 18, 20 and 25 hp (with WMC carburetor) / Mercury 200 with Phase-maker ignition / Merc model 200 and 20 hp (1979-1980) with Thunderbolt breakerless ignition / Merc model 402, 35 and 40 hp / Specifications
CHAPTER SIX / FUEL SYSTEM
Fuel pump / Carburetors / Integral fuel pump carburetor (original design) / Integral fuel pump carburetor (1979-1985 Merc 18 and 25 hp) / Centerbowl carburetor (Merc 4 hp 2-cylinder model) / Sidebowl carburetor / 3.5 and 3.6 hp carburetor / Integral fuel pump carburetor (with primer system) / Integral fuel pump carburetor (1988-on Merc 4 and 5 hp) / Sight bowl fuel filter / Anti-siphon devices / Fuel tank / Fuel line and primer bulb / Specifications
CHAPTER SEVEN / IGNITION AND ELECTRICAL SYSTEMS
Battery / Battery charging system / Electric starting system / Ignition system / Thunderbolt Phase-maker CD ignition system / Thunderbolt CD breakerless ignition system / Specifications
CHAPTER EIGHT / POWER HEAD
Engine serial number / Gaskets and sealants / Power head / Specifications
CHAPTER NINE / LOWER UNIT
Service precautions / Gear housing / Water pump / Bearing carrier and propeller shaft / Pinion gear, drive shaft and forward gear / Shift shaft, bushing and cam / Pinion depth/gear backlash / Propeller / Specifications
CHAPTER TEN / AUTOMATIC REWIND STARTER
Merc 3.5 and 3.6 hp / Merc 4 and 5 hp (1988-on) / Merc 6, 8, 9.9, 15, 18, 20 (1986-on) and 25 hp / Merc 2-cylinder 4 hp / Merc 4.5, 45, 7.5, 75, 9.8, 110, 200, 20 (1979-1980), 402, 35 and 40 / Shift interlock adjustment / Specifications
CHAPTER ELEVEN / MERC THRUSTER ELECTRIC OUTBOARDS
Lubrication / Periodic maintenance / Battery / Propeller / Electrical troubleshooting / Electrical component testing (variable speed control models) / Electrical component testing rotary switch models / Lower unit / Control housing / Specifications
INDEX
WIRING DIAGRAMS
Clymer®, a part of the Haynes Manuals family of brands, is a premier publisher of do-it-yourself service and repair manuals. The Clymer portfolio includes more than 500 manuals covering motorcycles, ATVs, snowmobiles, personal watercraft (PWC), marine engines, tractors, outdoor equipment and small engines. Whether it’s routine maintenance, such as tune-ups and brake service, or more extensive repairs involving engine and transmission disassembly, Clymer manuals, available in both print and online editions, provide comprehensive, reliable information required to perform the job. Accurate, clear and concise text combined with detailed illustration, exploded parts views, and extensive photography make it possible for the novice enthusiast to safely and enjoyably troubleshoot, service and repair their vehicles.