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Yamaha WR250X User Manual

Yamaha WR250X
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TABLE OF CONTENTS
SAFETY INFORMATION ................... 1-1
DESCRIPTION ................................... 2-1
Left view .......................................... 2-1
Right view ........................................ 2-2
Controls and instruments................. 2-3
INSTRUMENT AND CONTROL
FUNCTIONS ....................................... 3-1
Main switch/steering lock................. 3-1
Indicator lights and warning lights ... 3-2
Multi-function display....................... 3-3
Handlebar switches ......................... 3-8
Clutch lever...................................... 3-9
Shift pedal...................................... 3-10
Brake lever .................................... 3-10
Brake pedal ................................... 3-10
Fuel tank cap ................................. 3-11
Fuel................................................ 3-11
Catalytic converter......................... 3-13
Seat ............................................... 3-13
Helmet holder ................................ 3-14
Adjusting the front fork................... 3-14
Front fork bleeding......................... 3-16
Adjusting the shock absorber
assembly .................................... 3-17
EXUP system ................................ 3-18
Sidestand....................................... 3-19
Ignition circuit cut-off system ......... 3-19
FOR YOUR SAFETY – PRE-
OPERATION CHECKS ...................... 4-1
OPERATION AND IMPORTANT
RIDING POINTS................................. 5-1
Starting the engine .......................... 5-1
Shifting ............................................ 5-2
Tips for reducing fuel
consumption ................................ 5-3
Engine break-in ............................... 5-3
Parking ............................................ 5-4
PERIODIC MAINTENANCE AND
ADJUSTMENT ................................... 6-1
Owner’s tool kit................................ 6-2
Periodic maintenance chart for
the emission control system ........ 6-3
General maintenance and
lubrication chart ........................... 6-4
Removing and installing panels ...... 6-8
Checking the spark plug................ 6-11
Engine oil and oil filter element ..... 6-12
Coolant.......................................... 6-14
Cleaning the air filter element
and check hose.......................... 6-17
Adjusting the engine idling
speed ......................................... 6-19
Checking the throttle grip free
play ............................................ 6-19
Valve clearance............................. 6-20
Tires .............................................. 6-20
Spoke wheels ................................ 6-22
Adjusting the clutch lever free
play............................................. 6-23
Adjusting the brake lever free
play............................................. 6-24
Checking the shift pedal ................ 6-25
Brake light switches....................... 6-25
Checking the front and rear
brake pads.................................. 6-25
Checking the brake fluid level........ 6-26
Changing the brake fluid................ 6-27
Drive chain slack............................ 6-27
Cleaning and lubricating the
drive chain .................................. 6-29
Checking and lubricating the
cables ......................................... 6-29
Checking and lubricating the
throttle grip and cable................. 6-30
Checking and lubricating the
brake and clutch levers .............. 6-30
Checking and lubricating the
brake pedal................................. 6-31
Checking and lubricating the
sidestand .................................... 6-31
Lubricating the swingarm pivots .... 6-31
Checking the front fork................... 6-32
Checking the steering .................... 6-32
Checking the wheel bearings......... 6-33
Battery ........................................... 6-33
Replacing the fuses ....................... 6-34
Replacing the headlight bulb ......... 6-35
32D-28199-EB.book 1 ペー 2013年7月3日 水曜日 午前11時8分

Table of Contents

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Yamaha WR250X Specifications

General IconGeneral
Displacement250cc
Bore x Stroke77.0mm x 53.6mm
Compression Ratio11.8:1
Fuel SystemFuel Injection
Final DriveChain
Front Tire110/70-17
Rear Tire140/70-17
Seat Height35.2 in
Fuel Capacity2.0 gal
Engine TypeLiquid-cooled DOHC 4-stroke; 4 valves
IgnitionTCI (Transistor Controlled Ignition)
Front SuspensionInverted fork
Rear SuspensionSingle shock
Front Brake298mm hydraulic disc
Rear Brake230mm hydraulic disc
Transmission6-speed

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