Yamaha YZ450FX 2019 Owner's Service Manual page 13

GENERAL INFORMATION
LOCATION OF IMPORTANT LABELS.............................................................1-1
DESCRIPTION..................................................................................................1-2
IDENTIFICATION ..............................................................................................1-3
VEHICLE IDENTIFICATION NUMBER ......................................................1-3
ENGINE SERIAL NUMBER........................................................................1-3
INCLUDED PARTS ...........................................................................................1-4
NIPPLE WRENCH ......................................................................................1-4
HANDLEBAR PROTECTOR ......................................................................1-4
FUEL HOSE JOINT COVER ......................................................................1-4
POWER TUNER .........................................................................................1-4
IMPORTANT INFORMATION ...........................................................................1-6
PREPARATION FOR REMOVAL AND DISASSEMBLY ............................1-6
REPLACEMENT PARTS ............................................................................1-6
GASKETS, OIL SEALS AND O-RINGS .....................................................1-7
LOCK WASHERS/PLATES AND COTTER PINS ......................................1-7
BEARINGS AND OIL SEALS .....................................................................1-7
CIRCLIPS ...................................................................................................1-7
BASIC SERVICE INFORMATION.....................................................................1-8
ELECTRICAL SYSTEM ..............................................................................1-8
SPECIAL TOOLS............................................................................................1-12
CONTROL FUNCTIONS.................................................................................1-18
WARNING LIGHTS ..................................................................................1-18
ENGINE STOP SWITCH ..........................................................................1-18
START SWITCH .......................................................................................1-18
MODE SWITCH ........................................................................................1-18
CLUTCH LEVER ......................................................................................1-19
SHIFT PEDAL...........................................................................................1-19
THROTTLE GRIP .....................................................................................1-19
FRONT BRAKE LEVER ...........................................................................1-19
REAR BRAKE PEDAL..............................................................................1-19
SIDESTAND .............................................................................................1-19
STARTER KNOB ......................................................................................1-20
FUEL TANK CAP......................................................................................1-20
STARTING AND BREAK-IN ...........................................................................1-21
FUEL.........................................................................................................1-21
AIR FILTER MAINTENANCE ...................................................................1-21
STARTING A COLD ENGINE ..................................................................1-21
STARTING A WARM ENGINE .................................................................1-22
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