Yamaha 2-250 HP Two-Stroke Outboards & Jet Drives 1990-1995

Yamaha 2-250 hp two-stroke outboards and jet drives, 1990-1995. Part #: b784. 720 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 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 90 v6 models / 225 hp, 250 hp 76 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 76 v6) / twin barrel carburetor (115-130 hp v4 and 150-225 hp 90 v6) / carburetor cleaning and inspection (all models) / float adjustment / primer assembly (225 hp 90 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 / gear case / gear case disassembly/inspection/reassembly / pinion gear and driveshaft / shift shaft / forward gear or reverse gear ("l" models) and bearing assembly / gear case 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. Models covered: yamaha 115 and 130 hp v4. Yamaha 150. Yamaha 175. Yamaha 2-5 hp single cylinder. Yamaha 200 & 225 hp. Yamaha 225 & 250 hp 76 v6. Yamaha 30-90 hp 3-cylinder. Yamaha 6-55 hp 2-cylinder. Yamaha 90 v6 years: 1990 1991 1992 1993 1994 1995. Manufacturer: clymer.