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Clymer Mercury 3-275 HP Outboards 1990-1993

Clymer Mercury 3-275 HP Outboards 1990-1993


Clymer Mercury 3-275 HP Outboards 1990-1993

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Mercury 3 - 275 HP Outboards, 1990-1993
Part #: B722

640 pages

CHAPTER ONE / GENERAL INFORMATION
Manual organization / Notes, cautions and warnings / Torque specifications / Engine operation / Fasteners / Lubricants / Gasket sealant / Galvanic corrosion / Protection from Galvanic corrosion / Propeller

CHAPTER TWO / TOOLS AND TECHNIQUES
Safety first / Basic hand tools / Test equipment / Service hints / Special tips / Mechanic's techniques

CHAPTER THREE / TROUBLESHOOTING
Operating requirements / Starting system / Charging system / Ignition system / Breaker-point ignition troubleshooting (1990-1992 3 hp models) / Capacitor discharge ignition (CDI) / Direct voltage tests / Resistance test / Speed limiter / Spark advance/idle stabilizer module troubleshooting / Fuel system / Engine

CHAPTER FOUR / LUBRICATION, MAINTENANCE AND TUNE-UP
Lubrication / Storage / Anti-corrosion maintenance / Complete submersion / Flushing the cooling system / Tune-up

CHAPTER FIVE / TIMING, SYNCHRONIZING AND ADJUSTING
Ignition timing and synchronization / 3 hp models / 3 and 5 hp models / 8, 9.9 and 15 hp models / 20 and 25 hp models / 40 hp models / 50 and 60 hp models (prior to serial No. D000750) / 50 and 60 hp models (serial No. D000750-on) / 75 and 90 hp models / 100 and 115 hp models / 135-200 hp (except EFI) models / 250 and 275 hp models / 150Xri, 175Xri and 200Xri (EFI) models

CHAPTER SIX / FUEL SYSTEM
Fuel pump / Carburetors / Throttle plunger carburetor (3 and 3.3 hp models) / Integral fuel pump carburetor (4 and 5 hp models) / Integral fuel pump carburetor (8-25 hp models) / WMA carburetor (40 hp models) / MerCarb center bowl carburetor (50 and 50 hp models prior to serial No. D000750) / WME carburetor (50 and 60 hp serial No. D000750-on, 75, 90, 100 and 115 hp models) / WMH carburetor (135-200 hp models) / MerCarb center bowl carburetor (250 and 275 hp models) / Thermal air valve (135-200 hp models) / Enrichment valve and choke solenoid systems / Anti-siphon devices / Fuel filter / Fuel tank / Fuel hose and primer bulb / Electronic fuel injection (EFI) / Fuel management tests

CHAPTER SEVEN / IGNITION AND ELECTRICAL SYSTEMS
Battery / Battery charging system / Starting system / Magneto breaker point ignition / Capacitor discharge ignition (CDI) (1993 3.3 hp models) / Capacitor discharge ignition (CDI) (4-275 hp models)

CHAPTER EIGHT / POWER HEAD
Engine serial number / Gaskets and sealants / Fasteners and torque / Power head

CHAPTER NINE / LOWER UNIT GEAR HOUSING
Service precautions / Gear housing / Water pump / Bearing carrier and propeller shaft / Pinion gear, drive shaft and forward gear / Lower shift shaft, bushing and cam / Pinion depth/gear backlash / Propeller / Trim tab adjustment

CHAPTER TEN / POWER TRIM AND TILT SYSTEM
Manual tilt assist system / One-ram integral power trim system (40-60 hp models) / Three-ram integral power trim system (75-200 hp models) / One-ram oildyne power trim system (250-275 hp models) / Power trim assembly removal/installation / Power trim motor and pump assembly removal/installation

CHAPTER ELEVEN / OIL INJECTION SYSTEM
Autoblend II (50 and 60 hp prior to serial No. D000750) / Constant ratio oil injection (40 hp and 50-60 [serial No. D000750-on] hp models) / Injection system service / Variable-ratio oil injection (75-115 hp models) / Warning horn system / Injection system service / Variable-ratio oil injection (V6 models) / Warning hose system / Injection system service

CHAPTER TWELVE / MANUAL REWIND STARTERS
3 and 3.3 hp models / 4 and 5 hp models / 8, 9.9, 15, 20 and 25 hp models / 40 hp models

INDEX

WIRING DIAGRAMS

Models covered:
1990 1991 1992 1993 MERCURY 100 HP
1990 1991 1992 1993 MERCURY 115 HP
1990 1991 1992 1993 MERCURY 135 HP
1990 1991 1992 1993 MERCURY 15 HP
1990 1991 1992 1993 MERCURY 150 HP
1990 1991 1992 1993 MERCURY 150XR4
1990 1991 1992 1993 MERCURY 150XR6
1990 1991 1992 1993 MERCURY 150XRi
1990 1991 1992 1993 MERCURY 175 HP
1990 1991 1992 1993 MERCURY 175XRi
1990 1991 1992 1993 MERCURY 20 HP
1990 1991 1992 1993 MERCURY 200 HP
1990 1991 1992 1993 MERCURY 200XRi
1990 1991 1992 1993 MERCURY 25 HP
1990 1991 1992 1993 MERCURY 250 HP
1990 1991 1992 1993 MERCURY 275 HP
1990 1991 1992 1993 MERCURY 3 HP
1990 1991 1992 1993 MERCURY 3.3 HP
1990 1991 1992 1993 MERCURY 4 HP
1990 1991 1992 1993 MERCURY 40 HP
1990 1991 1992 1993 MERCURY 5 HP
1990 1991 1992 1993 MERCURY 50 HP
1990 1991 1992 1993 MERCURY 60 HP
1990 1991 1992 1993 MERCURY 75 HP
1990 1991 1992 1993 MERCURY 8 HP
1990 1991 1992 1993 MERCURY 9.9 HP
1990 1991 1992 1993 MERCURY 90 HP

B722