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Yamaha FZS 25 2021 User Manual

Yamaha FZS 25 2021
247 pages
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Table of Contents

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Yamaha FZS 25 2021 Specifications

General IconGeneral
Displacement249 cc
Bore x Stroke74.0 mm x 58.0 mm
Compression Ratio9.8:1
Max Torque20.1 Nm @ 6000 rpm
Fuel SystemFuel injection
Starting SystemElectric Start
Transmission5-speed
Front SuspensionTelescopic Fork
Rear SuspensionMonocross
Fuel Tank Capacity14 L
Wheelbase1360 mm
Seat Height795 mm
Ground Clearance160 mm
Engine TypeAir cooled, 4-stroke, SOHC, 2-valve
Max Power20.8 PS @ 8, 000 rpm
Front Brake282 mm
Rear Brake220 mm
Front Tire100/80-17
Rear Tire140/70-17 M/C 66S

Summary

Chapter 1: General Information

ABS Operation

Explains how the Anti-lock Brake System functions during braking.

ABS Warning Light and Operation

Information on the ABS warning light and its operational indicators.

Chapter 2: Specifications

Maintenance Specification (Engine)

Lists critical engine specifications for maintenance and service.

Maintenance Specification (Chassis)

Details chassis-related specifications for maintenance and checks.

Tightening Torques

Specifies torque values for standard fasteners and critical components.

Chapter 3: Periodic Checks and Adjustment

Periodic Maintenance

Provides a chart for scheduled maintenance intervals based on mileage.

Bleeding the Hydraulic Brake System (ABS)

Procedure for bleeding air from the ABS hydraulic brake system.

Chapter 4: General Chassis

Chapter 5: Engine

Engine Removal

Step-by-step instructions for removing the engine assembly.

Chapter 6: Electrical System

Fuel Injection System

Covers the fuel injection system circuit, self-diagnostics, and troubleshooting.

Self-Diagnostic Function and Diagnostic Code Table

Lists diagnostic codes, symptoms, and troubleshooting procedures.

ABS (Anti-lock Brake System)

Covers ABS system circuit diagrams, troubleshooting, and diagnostics.

Chapter 7: Troubleshooting

General Information

Provides general guidance and an overview of troubleshooting procedures.

Starting Failures

Lists common causes and checks for engine starting issues.

Overheating

Lists potential causes for engine overheating.

Poor Braking Performance

Common issues affecting braking performance and potential causes.

Unstable Handling

Potential causes for unstable vehicle handling.

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