3.3 HP (1990-1993)

This Mariner manual is 640 pages.

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 / Breaker-point ignition troubleshooting (1990-1992 2.5 hp models) / Capacitor discharge ignition (CDI) / Direct voltage test / Resistance test / Speed limiter / Spark advance/idle stabilizer module troubleshooting / Fuel system / Engine / Specifications

CHAPTER FOUR / LUBRICATION, MAINTENANCE AND TUNE-UP
Lubrication / Proper fuel selection / Recommended fuel mixture / Autoblend oil injection / oil injection systems / Fuel mixing procedure / AutoBlend 2 injection system / Constant ratio oil injection / Variable ratio oil injection / Checking lower drive unit lubrication / Lower drive unit lubricant change / Propeller shaft lubrication / Saltwater corrosion of gear housing bearing carrier and nut / Storage / Anti-corrosion maintenance / Complete submersion / Flushing the cooling system / Tune-up / Compression test / Spark plugs / Lower unit and water pump check / Fuel system service / Fuel line and hoses inspection / Fuel filter service / inline fuel filter / Sight bowl filter / Water separating filter (EFI models) / Final fuel filter (EFI models) / Fuel pump (except EFI models) / Fuel pump pressure test / Ignition system service / Breaker point and condenser service / Battery and starter check / Starter solenoid check / Alternator and rectifier check / Ignition timing and synchronization / On-boat performance test / Specifications

CHAPTER FIVE / TIMING, SYNCHRONIZING AND ADJUSTING
Ignition timing and synchronization / 2.5 hp models (prior to serial No. D90217) / 4 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 / 150, 175 and 200 EFI models / Specifications

CHAPTER SIX / FUEL SYSTEM
Fuel pump / Carburetor / Throttle plunger carburetor (2.5 and 3.3 hp models) / Integral fuel pump carburetor (4 and 5 hp models) / Integral fuel pump carburetor with primer system (8-25 hp models) / WMA carburetor (40 hp models) / MerCarb center bowl carburetor (50 and 60 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 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 / Specifications

CHAPTER SEVEN / IGNITION AND ELECTRICAL SYSTEMS
Battery / Battery charging system / Starting system / Magneto breaker point ignition / Capacitor discharge ignition (CDI) (1993 [serial No. D901217-on] 2.5 and 3.3 hp models) / Capacitor discharge ignition (CDI) (4-275 hp models) / Specifications

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

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 / Propeller / Trim tab adjustment / Specifications

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 / Specifications

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 hp models [serial No. D000750-on]) / Injection system service / Variable-ratio oil injection (75-115 hp models) / Warning horn system / Injection system service / Variable-ratio oil injection (V6 models) / Warning horn system / Injection system service / Specifications

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

INDEX

WIRING DIAGRAMS

Models covered:
1990 1991 1992 1993 Mariner 2.5 HP
1990 1991 1992 1993 Mariner 3.3 HP
1990 1991 1992 1993 Mariner 4 HP
1990 1991 1992 1993 Mariner 5 HP
1990 1991 1992 1993 Mariner 8 HP
1990 1991 1992 1993 Mariner 9.9 HP
1990 1991 1992 1993 Mariner 15 HP
1990 1991 1992 1993 Mariner 20 HP
1990 1991 1992 1993 Mariner 25 HP
1990 1991 1992 1993 Mariner 40 HP
1990 1991 1992 1993 Mariner 50 HP
1990 1991 1992 1993 Mariner 60 HP
1990 1991 1992 1993 Mariner 75 HP
1990 1991 1992 1993 Mariner 90 HP
1990 1991 1992 1993 Mariner 100 HP
1990 1991 1992 1993 Mariner 115 HP
1990 1991 1992 1993 Mariner 135 HP
1990 1991 1992 1993 Mariner 150 HP
1990 1991 1992 1993 Mariner 150 Magnum II
1990 1991 1992 1993 Mariner 150 Magnum III
1990 1991 1992 1993 Mariner 150 Magnum EFI
1990 1991 1992 1993 Mariner 175 HP
1990 1991 1992 1993 Mariner 175 Magnum EFI
1990 1991 1992 1993 Mariner 200 HP
1990 1991 1992 1993 Mariner 200 Magnum EFI
1990 1991 1992 1993 Mariner 250 HP
1990 1991 1992 1993 Mariner 275 HP

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Clymer Manuals Mariner 275 HP Manual

Mariner 2.5 HP (1990-1993)
Mariner 3.3 HP (1990-1993)
Mariner 4 HP (1990-1993)
Mariner 5 HP (1990-1993)
Mariner 8 HP (1990-1993)
Mariner 9.9 HP (1990-1993)
Mariner 15 HP (1990-1993)
Mariner 20 HP (1990-1993)
Mariner 25 HP (1990-1993)
Mariner 40 HP (1990-1993)
Mariner 50 HP (1990-1993)
Mariner 60 HP (1990-1993)
Mariner 75 HP (1990-1993)
Mariner 90 HP (1990-1993)
Mariner 100 HP (1990-1993)
Mariner 115 HP (1990-1993)
Mariner 135 HP (1990-1993)
Mariner 150 HP (1990-1993)
Mariner 150 Magnum II (1990-1993)
Mariner 150 Magnum III (1990-1993)
Mariner 150 Magnum EFI (1990-1993)
Mariner 175 HP (1990-1993)
Mariner 175 Magnum EFI (1990-1993)
Mariner 200 HP (1990-1993)
Mariner 200 Magnum EFI (1990-1993)
Mariner 250 HP (1990-1993)
Mariner 275 HP (1990-1993)