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TUNING
CARBURETOR SETTING..........................................................................8-1
ATMOSPHERIC CONDITIONS AND CARBURETOR SETTINGS............8-1
TEST RUN..................................................................................................8-1
EFFECTS OF THE SETTING PARTS ON THE THROTTLE VALVE
MAIN JET ADJUSTMENT ..........................................................................8-2
ADJUSTING THE POWER JET .................................................................8-2
PILOT AIR SCREW ADJUSTMENT...........................................................8-2
PILOT JET ADJUSTMENT.........................................................................8-3
JET NEEDLE ADJUSTMENT.....................................................................8-3
JET NEEDLE GROOVE POSITION ADJUSTMENT..................................8-4
RELATIONSHIP WITH THROTTLE OPENING .........................................8-4
CARBURETOR SETTING PARTS.............................................................8-5
ROAD CONDITION AND EXAMPLES OF CARBURETOR SETTING ......8-7
EXAMPLES OF CARBURETOR SETTING DEPENDING ON
CHANGE OF THE HEAT RANGE OF SPARK PLUGS .............................8-9
SELECTION OF THE SECONDARY REDUCTION RATIO
DRIVE AND REAR WHEEL SPROCKETS SETTING PARTS ................8-10
TIRE PRESSURE.....................................................................................8-10
FRONT FORK SETTING..........................................................................8-11
CHANGE IN AMOUNT AND CHARACTERISTICS OF FORK OIL..........8-11
SETTING OF SPRING AFTER REPLACEMENT ....................................8-11
FRONT FORK SETTING PARTS.............................................................8-12
REAR SUSPENSION SETTING ..............................................................8-12
CHOOSING SET LENGTH ......................................................................8-12
SETTING OF SPRING AFTER REPLACEMENT ....................................8-13
REAR SHOCK ABSORBER SETTING PARTS .......................................8-13
SUSPENSION SETTING (FRONT FORK)...............................................8-15
SUSPENSION SETTING (REAR SHOCK ABSORBER) .........................8-16
Summary of Contents for YZ250X 2023
Page 8: ......
Page 14: ...LOCATION OF IMPORTANT LABELS 1 5...
Page 15: ...LOCATION OF IMPORTANT LABELS 1 6 AUS NZL ZAF...
Page 30: ...MOTORCYCLE CARE AND STORAGE 1 21...
Page 94: ...FRONT FORK 4 24 1...
Page 109: ...1 2 3 4 5 6 7 8 9 10 ELECTRICAL SYSTEM WIRING DIAGRAM 6 1 COLOR CODE 6 1...
Page 124: ...TROUBLESHOOTING 7 13...
Page 131: ...ENGINE 8 6...
Page 143: ......
Page 144: ...PRINTED IN JAPAN E...