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Yamaha YZ250FM 2021 User Manual

Yamaha YZ250FM 2021
368 pages
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Read this manual carefully before operating this vehicle.
2021
OWNER’S SERVICE MANUAL
YZ250F
YZ250FM
LIT-11626-34-25 B7B-2819U-12

Table of Contents

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Yamaha YZ250FM 2021 Specifications

General IconGeneral
BrandYamaha
ModelYZ250FM 2021
CategoryMotorcycle
LanguageEnglish

Summary

General Information

Safety Information

Essential safety precautions and guidelines for operating the vehicle.

Important Information

Crucial details regarding manual usage, parts, and safety notations.

Special Tools

List of specialized tools required for accurate adjustment and assembly.

Specifications

Engine Specifications

Detailed technical data for the engine's combustion, cooling, and internal components.

Chassis Specifications

Specifications for wheels, tires, brakes, suspension, and frame components.

Tightening Torques

Specified torque values for various fasteners across the vehicle.

Periodic Checks and Adjustments

Maintenance Intervals

Recommended maintenance schedule based on mileage or time intervals.

Engine

Procedures for checking and adjusting engine components like valve clearance.

Chassis

Maintenance and adjustment procedures for chassis components like brakes and suspension.

Chassis

Front Wheel

Procedures for removing, disassembling, and checking the front wheel.

Front Brake

Detailed procedures for inspecting and servicing the front brake system.

Front Fork

Steps for removing, disassembling, and adjusting the front fork assembly.

Engine

Engine Removal

Step-by-step guide for removing the engine from the vehicle.

Camshaft

Procedures for removing, checking, and installing the camshaft.

Cylinder and Piston

Steps for removing, checking, and installing the cylinder and piston assembly.

Clutch

Procedures for removing, checking, and installing the clutch assembly.

Cooling System

Radiator

Procedures for removing, checking, and installing the radiator assembly.

Water Pump

Steps for removing, checking, and assembling the water pump.

Fuel System

Fuel Tank

Procedures for removing and installing the fuel tank assembly.

Throttle Body

Steps for removing and checking the throttle body and its components.

Electrical System

Ignition System

Circuit diagram and troubleshooting for the ignition system.

Electric Starting System

Circuit diagram and troubleshooting for the electric starting system.

Fuel Injection System

Circuit diagram and troubleshooting for the fuel injection system.

Electrical Components

Checking individual electrical components like switches, fuses, and sensors.

Troubleshooting

General Information

General guidelines and tips for effective troubleshooting.

Troubleshooting of Engine (Fault Code Not Detected)

Diagnosing and resolving engine starting and running issues without fault codes.

Troubleshooting of Brake

Identifying and fixing problems related to disc brake performance.

Troubleshooting of Suspension

Diagnosing and resolving issues with front and rear suspension performance.

Tuning

Chassis

Adjusting chassis settings like sprockets and tire pressure for performance.

Front Fork Setting

Adjusting front fork settings for rider preference and circuit conditions.

Rear Suspension Setting

Adjusting rear shock absorber settings for rider preference and conditions.

Suspension Setting (Front Fork)

Detailed adjustments for front fork symptoms like stiffness or bottoming out.

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