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Yamaha YZF-R1 98 Service Manual

Yamaha YZF-R1 98
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SERVICE MANUAL
YZF-R1
4XV1-AE1
’98

Table of Contents

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Yamaha YZF-R1 98 Specifications

General IconGeneral
Bore x Stroke74.0 mm x 58.0 mm
Compression Ratio11.8:1
Transmission6-speed
Front Tire120/70 ZR17
Wheelbase1, 395 mm
Dry Weight177 kg
Engine TypeLiquid-cooled, DOHC, 5-valve
IgnitionDigital
Front SuspensionTelescopic forks
Rear SuspensionSwingarm
Front BrakesDual disc
Rear BrakesSingle disc
Rear Tire190/50 ZR17
Seat Height815 mm
Fuel Capacity18 L

Summary

General Information

Motorcycle Identification

Identifies the unique VIN stamped on the steering head pipe and the model code label on the frame.

Vehicle Identification Number

Identifies the unique VIN stamped on the steering head pipe.

Model Code

Shows the model code label affixed to the frame for spare parts ordering.

Specifications

General Specifications

Provides dimensions and weight specifications for the motorcycle, including maximum load.

Engine Specifications

Details engine type, displacement, bore, stroke, compression ratio, and oil/fuel capacities.

Chassis Specifications

Covers frame, wheel, tire, and brake specifications, including dimensions and pressures.

Electrical Specifications

Lists system voltage, ignition, battery, and lighting specifications.

Tightening Torques

Specifies tightening torques for standard fasteners and components, with conversion tables.

Periodic Checks and Adjustments

Periodic Maintenance and Lubrication Intervals

Outlines recommended maintenance and lubrication jobs at specific mileage or time intervals.

Adjusting the Valve Clearance

Step-by-step guide for measuring and adjusting valve clearance using pads.

Checking and Adjusting the Steering Head

Steps for checking steering head for looseness or binding and adjusting the steering head.

Overhauling the Engine

Engine

Covers basic engine removal/installation, starting with the drive sprocket.

Camshafts

Details removing, checking, and installing camshafts, including lobe dimensions and runout.

Cylinder Head

Procedure for removing, checking, and installing the cylinder head, including warpage measurement.

Valves and Valve Springs

Covers removing, checking, and installing valves, springs, and guides, including lapping valve seats.

Clutch

Covers removing, checking, and installing the clutch assembly, including friction plates and springs.

Oil Pan and Oil Pump

Covers removing, checking, assembling, and installing the oil pan and oil pump components.

Crankcase

Details disassembling, checking, and assembling the crankcase halves, including bearings and seals.

Connecting Rods and Pistons

Covers removing, checking, and installing connecting rods and pistons, including ring and bearing clearances.

Crankshaft

Procedure for removing, checking, and installing the crankshaft and its journal bearings.

Transmission

Covers removing, checking, and installing the transmission, shift drum, and forks.

Cooling System

Radiator

Details checking and installing the radiator, including fins, hoses, and cap pressure.

Water Pump

Procedure for disassembling, checking, and assembling the water pump, including impeller shaft tilt.

Carburetors

Carburetors

Covers removing, separating, checking, assembling, and installing the carburetor system.

Chassis

Electrical

Troubleshooting

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