Yamaha YZ450FF 1SL-28199-11, Owner'S Service Manual

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3
PERIODIC CHECKS AND ADJUSTMENTS
MAINTENANCE INTERVALS ..........................................................................3-1
MAINTENANCE INTERVALS.....................................................................3-1
PRE-OPERATION INSPECTION AND MAINTENANCE .................................3-7
GENERAL INSPECTION AND MAINTENANCE........................................3-7
ENGINE .............................................................................................................3-8
CHECKING THE COOLANT LEVEL ..........................................................3-8
CHECKING THE COOLING SYSTEM .......................................................3-8
CHANGING THE COOLANT......................................................................3-8
CHECKING THE RADIATOR CAP.............................................................3-9
CHECKING THE RADIATOR CAP OPENING PRESSURE ......................3-9
CHECKING THE COOLANT CIRCULATORY SYSTEM FOR LEAKS ....3-10
ADJUSTING THE CLUTCH LEVER POSITION.......................................3-10
ADJUSTING THE CLUTCH LEVER FREE PLAY ....................................3-11
ADJUSTING THE THROTTLE GRIP FREE PLAY...................................3-11
LUBRICATING THE THROTTLE CABLE.................................................3-12
CLEANING THE AIR FILTER ELEMENT.................................................3-12
CHECKING THE THROTTLE BODY JOINT ............................................3-13
CHECKING THE BREATHER HOSES ....................................................3-13
CHECKING THE EXHAUST SYSTEM.....................................................3-14
CHECKING THE FUEL LINE ...................................................................3-14
CHECKING THE ENGINE OIL LEVEL.....................................................3-14
CHANGING THE ENGINE OIL.................................................................3-15
ADJUSTING THE ENGINE IDLING SPEED ............................................3-16
ADJUSTING THE VALVE CLEARANCE..................................................3-17
CHASSIS ........................................................................................................3-21
BLEEDING THE BRAKE SYSTEM ..........................................................3-21
CHECKING THE BRAKE HOSE ..............................................................3-22
ADJUSTING THE FRONT BRAKE...........................................................3-22
ADJUSTING THE REAR BRAKE .............................................................3-23
CHECKING THE FRONT BRAKE PADS .................................................3-23
CHECKING THE REAR BRAKE PADS....................................................3-25
CHECKING THE REAR BRAKE PAD INSULATOR ................................3-26
CHECKING THE BRAKE FLUID LEVEL..................................................3-26
ADJUSTING THE DRIVE CHAIN SLACK ................................................3-27
CHECKING THE FRONT FORK LEGS....................................................3-28
CHECKING THE FRONT FORK PROTECTOR GUIDE ..........................3-28
CLEANING THE FRONT FORK OIL SEAL AND DUST SEAL ................3-28
AIR BLEEDING FROM FRONT FORK.....................................................3-29
ADJUSTING THE FRONT FORK LEGS ..................................................3-29
CHECKING THE SWINGARM OPERATION ...........................................3-30
CHECKING THE REAR SUSPENSION ...................................................3-30
ADJUSTING THE REAR SHOCK ABSORBER ASSEMBLY ...................3-30
CHECKING THE TIRES ...........................................................................3-33
CHECKING AND TIGHTENING THE SPOKES .......................................3-33
CHECKING THE WHEELS ......................................................................3-33