Yamaha YZ450FX 2021 Owner's Service Manual page 12

STARTING A WARM ENGINE .................................................................1-25
BREAK-IN PROCEDURES ......................................................................1-25
ENGINE STARTING PRECAUTION ........................................................1-25
MAINTENANCE AFTER BREAK-IN ..............................................................1-26
MAJOR MAINTENANCE ..........................................................................1-26
AIR FILTER MAINTENANCE ...................................................................1-26
TORQUE-CHECK POINTS.............................................................................1-27
MOTORCYCLE CARE AND STORAGE.........................................................1-29
CARE ........................................................................................................1-29
STORAGE ................................................................................................1-30