TROUBLESHOOTING
9-4
EAM30510
TROUBLESHOOTING OF CLUTCH
Manual clutch
Noise heard from around piston
Worn or damaged piston ring
Replace the piston and piston
rings as a set.
Worn or damaged piston
Replace the piston and piston
rings as a set.
Worn piston (piston pin hole)
Replace the piston and piston pin
as a set.
Worn or damaged piston pin
Replace the piston pin.
Worn or damaged cylinder bore
Replace the cylinder, piston, and
piston rings as a set.
Carbon buildup in piston head and
combustion chamber
Clean the piston head and com-
bustion chamber.
Noise heard from around crank-
shaft
Worn or damaged crankshaft jour-
nal or crank pin
Replace the crankshaft.
Cracked, worn, or damaged bal-
ancer shaft
Replace the balancer drive gear
and balancer shaft as a set.
Worn or damaged balancer drive
gear
Replace the balancer drive gear
and balancer shaft as a set.
Worn or damaged big end bearing Replace the big end bearing.
Worn or damaged crankshaft jour-
nal bearing
Replace the crankshaft journal
bearing.
Worn or damaged balancer shaft
journal bearing
Replace the balancer shaft journal
bearing.
Symptom
Possible cause
Actions
Clutch slippage
Improperly assembled clutch
Reassemble the clutch.
Improperly adjusted clutch cable
Adjust the clutch lever free play.
Loose clutch spring
Tighten the clutch spring bolts to
the specified torque.
Fatigued clutch spring
Replace the clutch springs as a
set.
Warped pressure plate
Replace the pressure plate.
Worn friction plate
Replace the friction plates as a
set.
Warped or worn clutch plate
Replace the clutch plates as a set.
Incorrect oil level
Adjust the engine oil level to the
specified level.
Incorrect oil viscosity (low)
Change to recommended engine
oil.
Deteriorated oil
Change to recommended engine
oil.
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 ...