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1990-1995 Yamaha 2-250 hp 2-Stroke Outboard Boat Engine Repair Manual

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Description

This 1990-1995 Yamaha 2-250 hp 2-Stroke Outboard Boat Engine Repair Manual by Clymer provides detailed service information, step-by-step repair instruction and maintenance specifications for 1990-1995 Yamaha 2-250hp two-stroke outboard boat engines including Jet drives, 2-5 HP single-cylinder, 6-55 HP 2-cylinder, 30-90 HP 3-cylinder, 115 and 130 HP V4, 150, 175, 200 and 225 HP 90° V6, and 225 and 250 HP 76° V6 engines. Includes general information on each model, tools and techniques, troubleshooting and testing, lubrication, maintenance and tune-up, timing, synchronization and adjustments, fuel system, electrical and ignition systems, power head, gearcase, drive shaft housing, Jet drives, rewind starter, power trim and tilt systems, oil injection system, Yamaha 703 remote control box and complete wiring diagrams. Features 720 illustrated pages.

1990, 1991, 1992, 1993, 1994, 1995

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 testing (1990-1994 2 hp engine) , CDI ignition testing, Fuel enrichment system, Fuel system, Engine temperature and overheating, Power head

CHAPTER FOUR, LUBRICATION, MAINTENANCE AND TUNE-UP

Lubrication, Storage, Anti-corrosion maintenance, Complete submersion, Engine flushing, Tune-up

CHAPTER FIVE, TIMING, SYNCHRONIZATION AND ADJUSTMENT

Engine timing and synchronization, 1990-1994 2 hp models, 1995 2 hp models, 3 hp models, 4 hp and 5 hp models, 6 hp and 8 hp models, 9.9 hp and 15 hp models, C25 models, 25 hp models, C30 (2-cylinder) models, 30 hp (3-cylinder) models, C40 (2-cylinder) models, 40 hp, 50 hp and Pro 50 (3-cylinder) models, C55 models, Pro 60, 70 hp and 90 hp models, C75 hp and C85 models, C115 models, 115 hp, Pro V 115, 130 hp V4, 150 hp, Pro V 150, 175 hp Pro V 175, 200 hp, Pro V 200 and 225 hp 90º V6 models, 225 hp, 250 hp 76º V6 models

CHAPTER SIX, FUEL SYSTEM

Fuel system connections, Fuel pump, Prime start system, Carburetors, Throttle plunger carburetor (2 hp) , Integral fuel pump carburetor, Center bowl carburetor (C25) , Center bowl carburetor (C30, C40, C75 and C85) , Center bowl carburetor (C55) , Center bowl carburetor (40, 50, 70 and 90 hp and Pro 50 and Pro 60) , Center bowl carburetor (225, 250 hp 76º V6) , Twin barrel carburetor (115-130 hp V4 and 150-225 hp 90º V6) , Carburetor cleaning and inspection (all models) , Float adjustment, Primer assembly (225 hp 90º V6) ,  Fuel filter, Reed valve assembly, Integral fuel tank (2-5 hp) , Portable fuel tank (7-250 hp) , Fuel line and primer bulb, Anti-siphon devices

CHAPTER SEVEN, IGNITION AND ELECTRICAL SYSTEMS

Electrical connector adapters, Battery, Battery charging system, Electric starting system, Ignition systems, Magneto breaker point ignition (1990-1994 2 hp) ,  Capacitor discharge ignition (2-55 hp and Pro 50 models) , Capacitor discharge ignition (75-200 hp [except 1992-on 90 hp]) , Yamaha microcomputer ignition system (YMIS) (1992-on Pro 60, 70 hp, 90 hp 3-cylinder and all 225-250 hp V6 models)

CHAPTER EIGHT, POWER HEAD

Fasteners and torque, Engine serial number, Gaskets and sealants, Flywheel, Power head removal/installation, Power head disassembly, Crankshaft assembly and cylinder block, Power head assembly

CHAPTER NINE, GEARCASE AND DRIVE SHAFT HOUSING

Service precautions and notes, Propeller, Water pump, Gearcase, Gearcase disassembly/inspection/reassembly, Pinion gear and driveshaft, Shift shaft, Forward gear or reverse gear (“L” models) and bearing assembly, Gearcase housing, Pinion gear depth and gear backlash, Trim tab and anode, Pressure and vacuum test

CHAPTER TEN, JET DRIVES

Maintenance, Water pump, Jet drive, Bearing housing, Intake housing liner

CHAPTER ELEVEN, REWIND STARTERS

CHAPTER TWELVE, POWER TRIM AND TILT SYSTEMS

Power tilt system, Power trim/tilt system

CHAPTER THIRTEEN, OIL INJECTION SYSTEM

System components, Operation, Oil level warning system, Oil injection system service, Component replacement

CHAPTER FOURTEEN, YAMAHA 703 REMOTE CONTROL BOX

INDEX

WIRING DIAGRAMS

Additional information

Weight 3.75 lbs
Dimensions 13 × 10 × 2 in
ISBN

9780892876501