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1990-1993 Mariner 25-275 hp Outboard Boat Engine Repair Manual

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Description

This 1990-1993 Mariner 25-275 hp Outboard Boat Engine Repair Manual provides detailed service information, step-by-step repair instruction and maintenance specifications for 1990, 1991, 1992, 1993 Mariner 2.5-275hp outboard including 2.5 hp, 3.3 hp, 4 hp, 5 hp, 8 hp, 9.9 hp, 15 hp, 20 hp, 25 hp, 40 hp, 50 hp, 60 hp, 75 hp, 90 hp, 100 hp, 115 hp, 135 hp, 150 hp, 150 Magnum II, 150 Magnum III, 150 Magnum EFI, 175 HP, 175 Magnum EFI, 200 hp, 200 Magnum EFI, 250 hp, and 275 hp motors. Includes general information on each model, tools and techniques, troubleshooting, lubrication, maintenance and tune-up, timing, synchronizing and adjusting, fuel system, electrical and ignition systems, power head, lower unit gear housing, power trim and tilt systems, oil injection system, manual rewind starter and complete wiring diagrams. Features 640 illustrated 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

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 2.5 hp models) /  Capacitor discharge ignition (CDI) /  Direct voltage test / 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 / 2.5 hp (prior to serial No. D90217) /  4 and 5 hp / 8, 9.9 and 15 hp / 20 and 25 hp / 40 hp / 50 and 60 hp (prior to serial No. D000750) /  50 and 60 hp (serial No. D000750-on) /  75 and 90 hp / 100 and 115 hp / 135-200 hp (except EFI) / 250 and 275 hp / 150, 175 and 200 EFI models

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 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

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)

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 / 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 hp [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

CHAPTER TWELVE / MANUAL REWIND STARTERS

2.5 and 3.3 hp / 4 and 5 hp / 8, 9.9, 15, 20 and 25 hp / 40 hp models

INDEX

WIRING DIAGRAMS

Additional information

Weight 3.56 lbs
Dimensions 9.5 × 7.75 × 1 in
ISBN

9780892876068

UPC

24185760696

Brand

Clymer