FRONT FORK
4-44
3. Remove:
•
Dust seal “1”
•
Stopper ring “2”
(with a flat-head screwdriver)
NOTICE
ECA14180
Do not scratch the inner tube.
4. Remove:
•
Inner tube “1”
a. Push in slowly “a” the inner tube just be-
fore it bottoms out and then pull it back
quickly “b”.
b. Repeat this step until the inner tube can be
pulled out from the outer tube.
5. Remove:
•
Base valve “1”
(from the damper assembly)
TIP
Hold the damper assembly with the cap bolt ring
wrench “2” and use the cap bolt wrench “3” to re-
move the base valve.
EAM30057
CHECKING THE FRONT FORK LEGS
1. Check:
•
Inner tube surface
Scratches
Repair or replace.
Use #1000 grit wet sandpaper.
Damaged oil lock piece
Replace.
•
Inner tube bends
Out of specification
Replace.
Use the dial gauge.
TIP
The bending value is shown by one half of the
dial gauge reading.
WARNING
EWA13650
Do not attempt to straighten a bent inner
tube as this may dangerously weaken it.
2. Check:
•
Outer tube
Scratches/wear/damage
Replace.
3. Measure:
•
Fork spring free length “a”
Out of specification
Replace.
1
2
3
4
1
2
Cap bolt wrench
90890-01500
Cap bolt wrench
YM-01500
Cap bolt ring wrench
90890-01501
Cap bolt ring wrench
YM-01501
Inner tube bending limit
0.2 mm (0.01 in)
Fork spring free length limit
492.0 mm (19.37 in)
1
2
3
Summary of Contents for YZ 2023 Series
Page 6: ...EAM20162 YAMAHA MOTOR CORPORATION U S A YZ MOTORCYCLE LIMITED WARRANTY...
Page 10: ......
Page 44: ...MOTORCYCLE CARE AND STORAGE 1 32...
Page 61: ...TIGHTENING TORQUES 2 16...
Page 62: ...CABLE ROUTING DIAGRAM 2 17 EAM20152 CABLE ROUTING DIAGRAM Frame and engine left side view...
Page 64: ...CABLE ROUTING DIAGRAM 2 19 Frame and engine right side view...
Page 66: ...CABLE ROUTING DIAGRAM 2 21 Handlebar front view...
Page 68: ...CABLE ROUTING DIAGRAM 2 23 Frame and engine top view...
Page 70: ...CABLE ROUTING DIAGRAM 2 25 Frame and battery top view...
Page 72: ...CABLE ROUTING DIAGRAM 2 27 Rear brake right side view...
Page 74: ...CABLE ROUTING DIAGRAM 2 29...
Page 112: ...ELECTRICAL SYSTEM 3 36...
Page 148: ...REAR BRAKE 4 34 system Refer to BLEEDING THE HYDRAULIC BRAKE SYSTEM on page 3 25...
Page 154: ...HANDLEBAR 4 40 Throttle grip free play 3 0 6 0 mm 0 12 0 24 in...
Page 187: ...INSTALLING THE TRANSMISSION 5 74...
Page 190: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 5 3 1 Oil filter element 2 Oil pump...
Page 191: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 5 4 1 Intake camshaft 2 Exhaust camshaft...
Page 264: ...TRANSMISSION 5 77...
Page 274: ...WATER PUMP 6 9...
Page 284: ...THROTTLE BODY 7 9...
Page 287: ......
Page 288: ...IGNITION SYSTEM 8 1 EAM20142 IGNITION SYSTEM EAM30277 CIRCUIT DIAGRAM...
Page 292: ...ELECTRIC STARTING SYSTEM 8 5 EAM20143 ELECTRIC STARTING SYSTEM EAM30279 CIRCUIT DIAGRAM...
Page 296: ...CHARGING SYSTEM 8 9 EAM20144 CHARGING SYSTEM EAM30282 CIRCUIT DIAGRAM...
Page 299: ...CHARGING SYSTEM 8 12...
Page 300: ...SIGNALING SYSTEM 8 13 EAM20154 SIGNALING SYSTEM EAM30348 CIRCUIT DIAGRAM...
Page 304: ...FUEL INJECTION SYSTEM 8 17 EAM20145 FUEL INJECTION SYSTEM EAM30284 CIRCUIT DIAGRAM...
Page 329: ...FUEL INJECTION SYSTEM 8 42...
Page 330: ...FUEL PUMP SYSTEM 8 43 EAM20146 FUEL PUMP SYSTEM EAM30287 CIRCUIT DIAGRAM...
Page 362: ...SELF DIAGNOSTIC FUNCTION AND DIAGNOSTIC CODE TABLE 9 15...
Page 372: ...CHASSIS 10 9...
Page 374: ......
Page 376: ......
Page 377: ...YZ250FXP 2023 WIRING DIAGRAM BAJ 2819U 13_WD indd 1 2022 04 01 9 58 37...
Page 378: ...YZ250FXP 2023 WIRING DIAGRAM BAJ 2819U 13_WD indd 2 2022 04 01 9 58 37...