TROUBLESHOOTING
9-10
EAM30515
TROUBLESHOOTING OF STEERING/HANDLING
Rear suspension is soft
Oil leaking from rear shock
absorber
Replace the rear shock absorber.
Gas leaking from rear shock
absorber
Replace the rear shock absorber.
Fatigued or damaged rear shock
absorber spring
Replace the rear shock absorber.
Improperly adjusted rear shock
absorber spring preload (soft)
Adjust the spring preload.
Improperly adjusted rear shock
absorber rebound damping (soft)
Adjust the rebound damping.
Improperly adjusted rear shock
absorber compression damping
(soft)
Adjust the compression damping.
Oil leaking from rear shock
absorber
Bent, damaged, or corroded rear
shock absorber rod
Replace the rear shock absorber.
Damaged oil seal lip
Replace the rear shock absorber.
Symptom
Possible cause
Actions
Handlebar wobble
Loose lower ring nut
Tighten the lower ring nut to the
specified torque.
Worn bearing or bearing race
Replace the bearing and bearing
race as a set.
Warped front fork
Repair or replace the front fork.
Bent front wheel axle
Replace the front wheel axle.
Incorrect tire pressure
Adjust to the specified tire pres-
sure.
Worn, deformed, or incorrect tire
Replace the tire.
Heavy steering
Lower ring nut is tightened too
tight.
Tighten the lower ring nut to the
specified torque.
Bent lower bracket
Replace the lower bracket.
Broken bearing or bearing race
Replace the bearing and bearing
race as a set.
Incorrect tire pressure
Adjust to the specified tire pres-
sure.
Front wheel vibration
Loose spoke
Tighten the spoke and adjust the
runout.
Damaged or worn wheel bearing
Replace the wheel bearing.
Worn, deformed, or incorrect tire
Replace the tire.
Loose wheel axle or wheel axle
nut
Tighten the wheel axle or wheel
axle nut to the specified torque.
Loose wheel axle pinch bolt
Tighten the wheel axle pinch bolt
to the specified torque.
Incorrect front fork oil level
Adjust to the specified front fork oil
level.
Symptom
Possible cause
Actions
Содержание YZ250FX 2021
Страница 6: ...EAM20162 YAMAHA MOTOR CORPORATION U S A YZ MOTORCYCLE LIMITED WARRANTY ...
Страница 10: ......
Страница 61: ...TIGHTENING TORQUES 2 16 ...
Страница 62: ...CABLE ROUTING DIAGRAM 2 17 EAM20152 CABLE ROUTING DIAGRAM Frame and engine left side view ...
Страница 64: ...CABLE ROUTING DIAGRAM 2 19 Frame and engine right side view ...
Страница 66: ...CABLE ROUTING DIAGRAM 2 21 Handlebar front view ...
Страница 68: ...CABLE ROUTING DIAGRAM 2 23 Frame and engine top view ...
Страница 70: ...CABLE ROUTING DIAGRAM 2 25 Frame and battery top view ...
Страница 72: ...CABLE ROUTING DIAGRAM 2 27 Rear brake right side view ...
Страница 74: ...CABLE ROUTING DIAGRAM 2 29 ...
Страница 112: ...ELECTRICAL SYSTEM 3 36 ...
Страница 153: ...HANDLEBAR 4 39 Throttle grip free play 3 0 6 0 mm 0 12 0 24 in ...
Страница 166: ...FRONT FORK 4 52 1 ...
Страница 184: ...CHAIN DRIVE 4 70 ...
Страница 189: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 5 3 1 Oil filter element 2 Oil pump ...
Страница 190: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 5 4 1 Intake camshaft 2 Exhaust camshaft ...
Страница 191: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 5 5 1 Camshaft 2 Oil pressure check bolt 3 Oil pump 4 Oil filter element ...
Страница 245: ...SHIFT SHAFT 5 59 TIP Align the punch mark a on the shift shaft with the punch mark b in the shift pedal 1 1 2 2 a b ...
Страница 251: ...OIL PUMP 5 65 A Primary drive gear side B Crankcase cover side 5 7 mm 0 02 0 28 in 5 c d 6 8 b 8 6 7 E ...
Страница 264: ...TRANSMISSION 5 78 ...
Страница 274: ...WATER PUMP 6 9 ...
Страница 284: ...THROTTLE BODY 7 9 ...
Страница 287: ......
Страница 288: ...IGNITION SYSTEM 8 1 EAM20142 IGNITION SYSTEM EAM30277 CIRCUIT DIAGRAM ...
Страница 292: ...ELECTRIC STARTING SYSTEM 8 5 EAM20143 ELECTRIC STARTING SYSTEM EAM30279 CIRCUIT DIAGRAM ...
Страница 296: ...CHARGING SYSTEM 8 9 EAM20144 CHARGING SYSTEM EAM30282 CIRCUIT DIAGRAM ...
Страница 299: ...CHARGING SYSTEM 8 12 ...
Страница 300: ...SIGNALING SYSTEM 8 13 EAM20154 SIGNALING SYSTEM EAM30348 CIRCUIT DIAGRAM ...
Страница 304: ...FUEL INJECTION SYSTEM 8 17 EAM20145 FUEL INJECTION SYSTEM EAM30284 CIRCUIT DIAGRAM ...
Страница 329: ...FUEL INJECTION SYSTEM 8 42 ...
Страница 330: ...FUEL PUMP SYSTEM 8 43 EAM20146 FUEL PUMP SYSTEM EAM30287 CIRCUIT DIAGRAM ...
Страница 362: ...SELF DIAGNOSTIC FUNCTION AND DIAGNOSTIC CODE TABLE 9 15 ...
Страница 372: ...CHASSIS 10 9 ...
Страница 374: ......
Страница 376: ......
Страница 377: ...YZ250FXM 2021 WIRING DIAGRAM BAJ 2819U 11_WD indd 1 2020 06 29 15 46 05 ...
Страница 378: ...YZ250FXM 2021 WIRING DIAGRAM BAJ 2819U 11_WD indd 2 2020 06 29 15 46 06 ...