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Yamaha YZ250(R)/LC User Manual

Yamaha YZ250(R)/LC
586 pages
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OWNER’S SERVICE MANUAL
MANUEL D’ATELIER DU
PROPRIETAIRE
FAHRER-UND
WARTUNGS-HANDBUCH
MANUALE DI SEVIZIO DEL
PROPRIETARI
O
YZ250
(
R
)
/LC
5UP-28199-30
PRINTED IN JAPAN
2002.5—1.7 × 1 !
(E, F, G, H)
YAMAHA MOTOR CO., LTD.
2500 SHINGAI IWATA SHIZUOKA JAPAN
PRINTED ON RECYCLED PAPER
YZ250
(
R
)
/LC

Table of Contents

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Yamaha YZ250(R)/LC Specifications

General IconGeneral
Displacement249cc
Bore x Stroke66.4mm x 72.0mm
Fuel SystemKeihin PWK38S carburetor
IgnitionCDI
Transmission5-speed; multiplate wet clutch
Final DriveChain
Front BrakeHydraulic disc, 270mm
Rear BrakeHydraulic disc, 240mm
Tires Front80/100-21
Tires Rear110/90-19
Width32.5 in
Wheelbase58.5 in
Ground Clearance14.2 in
Fuel Capacity2.1 gal
Wet Weight227 lb
Engine TypeLiquid-cooled 2-stroke, reed-valve inducted
Compression Ratio8.9–10.6:1
Front SuspensionKYB® Speed-Sensitive System, inverted fork; fully adjustable
Rear SuspensionKYB monoshock, adjustable

Summary

IMPORTANT NOTICE

SAFETY INFORMATION

General safety precautions for operating the machine.

HOW TO USE THIS MANUAL

MANUAL FORMAT

ILLUSTRATED SYMBOLS

CHAPTER 4 ENGINE

CYLINDER HEAD, CYLINDER AND PISTON

Procedures related to cylinder head, cylinder, and piston.

CHAPTER 5 CHASSIS

FRONT BRAKE AND REAR BRAKE

Information on front and rear brake systems.

FRONT FORK

Information on front fork assembly and components.

STEERING

Information on the steering system.

REAR SHOCK ABSORBER

Information on the rear shock absorber.

CHAPTER 6 ELECTRICAL

IGNITION SYSTEM

Inspection and troubleshooting of the ignition system.

CHAPTER 7 TUNING

ENGINE

Carburetor settings for optimal engine performance.

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