Periodic Checks And Adjustments - Yamaha WR250R Service Manual

PERIODIC CHECKS AND ADJUSTMENTS

PERIODIC MAINTENANCE...........................................................................3-1
INTRODUCTION......................................................................................3-1
Periodic maintenance chart for the emission control system ...................3-1
ENGINE ..........................................................................................................3-4
ADJUSTING THE VALVE CLEARANCE .................................................3-4
ADJUSTING THE ENGINE IDLING SPEED............................................3-6
ADJUSTING THE THROTTLE CABLE FREE PLAY ...............................3-6
CHECKING THE SPARK PLUG ..............................................................3-8
CHECKING THE IGNITION TIMING........................................................3-8
MEASURING THE COMPRESSION PRESSURE...................................3-9
CHECKING THE ENGINE OIL LEVEL ....................................................3-10
CHANGING THE ENGINE OIL ................................................................3-11
ADJUSTING THE CLUTCH CABLE FREE PLAY....................................3-12
CLEANING THE AIR FILTER ELEMENT ................................................3-13
CHECKING THE THROTTLE BODY JOINT............................................3-14
CHECKING THE FUEL LINE ...................................................................3-14
CHECKING THE CYLINDER HEAD BREATHER HOSE ........................3-15
CHECKING THE EXHAUST SYSTEM ....................................................3-15
ADJUSTING THE EXUP CABLES...........................................................3-15
CLEANING THE SPARK ARRESTER .....................................................3-16
CHECKING THE CANISTER (FOR CALIFORNIA ONLY).......................3-17
CHECKING THE COOLANT LEVEL........................................................3-17
CHECKING THE COOLING SYSTEM.....................................................3-17
CHANGING THE COOLANT ...................................................................3-18
CHASSIS........................................................................................................3-20
ADJUSTING THE FRONT DISC BRAKE.................................................3-20
ADJUSTING THE REAR DISC BRAKE ...................................................3-20
CHECKING THE BRAKE FLUID LEVEL .................................................3-21
CHECKING THE FRONT BRAKE PADS.................................................3-21
CHECKING THE REAR BRAKE PADS ...................................................3-22
CHECKING THE FRONT BRAKE HOSE ................................................3-22
CHECKING THE REAR BRAKE HOSE...................................................3-22
ADJUSTING THE REAR BRAKE LIGHT SWITCH..................................3-22
BLEEDING THE HYDRAULIC BRAKE SYSTEM ....................................3-23
ADJUSTING THE DRIVE CHAIN SLACK................................................3-24
LUBRICATING THE DRIVE CHAIN.........................................................3-24
CHECKING AND ADJUSTING THE STEERING HEAD..........................3-25
CHECKING THE FRONT FORK..............................................................3-26
ADJUSTING THE FRONT FORK LEGS..................................................3-26
AIR BLEEDING FROM FRONT FORK ....................................................3-27
ADJUSTING THE REAR SHOCK ABSORBER ASSEMBLY...................3-27
CHECKING THE TIRES...........................................................................3-29
CHECKING THE WHEELS ......................................................................3-31
CHECKING AND TIGHTENING THE SPOKES.......................................3-31
CHECKING AND LUBRICATING THE CABLES .....................................3-31
LUBRICATING THE LEVERS..................................................................3-31
LUBRICATING THE PEDAL ....................................................................3-32
LUBRICATING THE SIDESTAND ...........................................................3-32
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