Yamaha YZF-R25 Manuel utilisateur

EAS20004

HOW TO USE THIS MANUAL

This manual is intended as a handy, easy-to-read reference book for the mechanic. Comprehensive

explanations of all installation, removal, disassembly, assembly, repair and check procedures are laid

out with the individual steps in sequential order.

• The manual is divided into chapters and each chapter is divided into sections. The current section title

“1” is shown at the top of each page.

• Sub-section titles “2” appear in smaller print than the section title.

• To help identify parts and clarify procedure steps, there are exploded diagrams “3” at the start of each

removal and disassembly section.

• Numbers “4” are given in the order of the jobs in the exploded diagram. A number indicates a disas-

sembly step.

• Symbols “5” indicate parts to be lubricated or replaced.

Refer to “SYMBOLS” on page 1-4.

• A job instruction chart “6” accompanies the exploded diagram, providing the order of jobs, names of

parts, notes in jobs, etc. This step explains removal and disassembly procedure only. For installation

and assembly procedure, reverse the steps.

• Jobs “7” requiring more information (such as special tools and technical data) are described sequen-

tially.

EAS20005

SYMBOLS

The following symbols are used in this manual for easier understanding.

TIP

The following symbols are not relevant to every vehicle.

SYMBOL DEFINITION SYMBOL DEFINITION

Serviceable with engine mounted Gear oil

Filling fluid Molybdenum disulfide oil

Lubricant Brake fluid

Special tool Wheel bearing grease

Tightening torque Lithium-soap-based grease

Wear limit, clearance Molybdenum disulfide grease

Engine speed Silicone grease

Electrical data Apply locking agent (LOCTITE®).

Engine oil Replace the part with a new one.

Silicone fluid

New

EAS10003 TABLE OF CONTENTS

GENERAL INFORMATION 1

SPECIFICATIONS 2

PERIODIC CHECKS AND

ADJUSTMENTS 3

CHASSIS 4

ENGINE 5

COOLING SYSTEM 6

FUEL SYSTEM 7

ELECTRICAL SYSTEM 8

TROUBLESHOOTING 9

GENERAL INFORMATION

IDENTIFICATION ............................................................................................1-1

VEHICLE IDENTIFICATION NUMBER .....................................................1-1

FEATURES......................................................................................................1-2

OUTLINE OF THE FI SYSTEM.................................................................1-2

FI SYSTEM................................................................................................1-3

MULTI-FUNCTION METER UNIT .............................................................1-4

IMPORTANT INFORMATION .........................................................................1-9

PREPARATION FOR REMOVAL AND DISASSEMBLY........................... 1-9

REPLACEMENT PARTS...........................................................................1-9

GASKETS, OIL SEALS AND O-RINGS ....................................................1-9

LOCK WASHERS/PLATES AND COTTER PINS .....................................1-9

BEARINGS AND OIL SEALS ..................................................................1-10

CIRCLIPS ................................................................................................1-10

RUBBER PARTS.....................................................................................1-10

BASIC SERVICE INFORMATION.................................................................1-11

QUICK FASTENERS...............................................................................1-11

ELECTRICAL SYSTEM...........................................................................1-12

SPECIAL TOOLS ..........................................................................................1-17

IDENTIFICATION

1-1

EAS20007

IDENTIFICATION

EAS30002

VEHICLE IDENTIFICATION NUMBER

The vehicle identification number “1” is stamped

into the frame under the passenger seat.

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