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Yamaha FZN250-A User Manual

Yamaha FZN250-A
247 pages
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Table of Contents

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Yamaha FZN250-A Specifications

General IconGeneral
Displacement249 cc
Bore x Stroke74.0 mm x 58.0 mm
Compression Ratio9.8 : 1
Lubrication SystemWet sump
Frame TypeDiamond
Front SuspensionTelescopic fork
Ground Clearance160 mm
Final DriveChain
Engine TypeAir-cooled, 4-stroke, SOHC, 2-valve
Maximum Power21.0 PS @ 8, 000 rpm
Ignition SystemTCI
Starting SystemElectric
Transmission5-speed constant mesh
Fuel Tank Capacity14 L
Rear SuspensionMonocross suspension
Front BrakeSingle disc
Rear BrakeDrum brake
Front Tyre100/80-17M/C
HeadlightLED
Tail LightLED
Clutch TypeWet, multiple-disc

Summary

Chapter 1 General Information

Special Tools

Lists and illustrates specialized tools required for motorcycle maintenance and repair.

Chapter 2 Specifications

Maintenance Specification (Engine)

Details engine specifications including combustion, displacement, oil, and spark plug requirements.

Maintenance Specification (Chassis)

Covers chassis specifications like frame, wheels, tires, brakes, suspension, and drive chain.

Maintenance Specification (Electrical)

Provides specifications for the electrical system including voltage, ignition, charging, and lighting.

Tightening Torques

Specifies general tightening torques for standard ISO thread pitch fasteners.

Engine Tightening Torques

Lists specific tightening torque values for various engine components.

Chassis Tightening Torques

Provides specific tightening torque values for various chassis components.

Chapter 3 Periodic Checks and Adjustment

Periodic Maintenance

Outlines scheduled maintenance intervals and checks for emission control and general systems.

Chapter 4 General Chassis

Front Wheel Service

Covers the removal, maintenance, and installation of the front wheel and brake disc.

Rear Wheel Service

Details the removal, maintenance, and installation of the rear wheel and associated parts.

Front Brake Caliper Service

Explains the procedure for removing and installing the front brake caliper.

ABS Hydraulic Unit Service

Covers the removal, checking, and installation of the ABS hydraulic unit assembly.

Chapter 5 Engine

Chapter 6 Electrical System

Fuel Injection System

Covers the circuit diagram, self-diagnosis, and troubleshooting for the fuel injection system.

ABS (Anti-Lock Brake System)

Provides circuit diagrams, coupler locations, maintenance, and troubleshooting for the ABS.

Chapter 7 Troubleshooting

Poor Braking Performance

Lists potential causes for ineffective or poor braking performance.

Wiring Diagram

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