Yamaha YZ250 2022 Owner's Service Manual page 11

GENERAL INFORMATION
SAFETY INFORMATION ..................................................................................1-1
FOR SAFETY, BE SURE TO OBEY THE FOLLOWING:...........................1-1
LOCATION OF IMPORTANT LABELS.............................................................1-4
DESCRIPTION..................................................................................................1-5
IDENTIFICATION ..............................................................................................1-6
VEHICLE IDENTIFICATION NUMBER ......................................................1-6
ENGINE SERIAL NUMBER........................................................................1-6
INCLUDED PARTS ...........................................................................................1-7
SIDESTAND ...............................................................................................1-7
NIPPLE WRENCH ......................................................................................1-7
VALVE JOINT .............................................................................................1-7
SET PIN......................................................................................................1-7
IMPORTANT INFORMATION ...........................................................................1-8
PREPARATION FOR REMOVAL AND DISASSEMBLY ............................1-8
REPLACEMENT PARTS ............................................................................1-8
GASKETS, OIL SEALS AND O-RINGS .....................................................1-8
LOCK WASHERS/PLATES AND COTTER PINS ......................................1-9
BEARINGS AND OIL SEALS .....................................................................1-9
CIRCLIPS ...................................................................................................1-9
BASIC SERVICE INFORMATION...................................................................1-10
ELECTRICAL SYSTEM ............................................................................1-10
SPECIAL TOOLS............................................................................................1-12
INSTRUMENT AND CONTROL FUNCTIONS ...............................................1-16
ENGINE STOP SWITCH ..........................................................................1-16
SHIFT PEDAL...........................................................................................1-16
KICKSTARTER LEVER ............................................................................1-16
FRONT BRAKE LEVER ...........................................................................1-16
REAR BRAKE PEDAL..............................................................................1-16
FUEL COCK .............................................................................................1-16
STARTER KNOB (CHOKE)......................................................................1-17
STARTING AND BREAK-IN ...........................................................................1-18
FUEL AND ENGINE MIXING OIL.............................................................1-18
STARTING A COLD ENGINE ..................................................................1-18
STARTING A WARM ENGINE .................................................................1-18
BREAK-IN PROCEDURES ......................................................................1-18
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