ENGINE REMOVAL
5-9
Removing the engine
Order
Job/Parts to remove
Q’ty
Remarks
Use a maintenance stand to raise the front
wheel off the ground.
Seat
Refer to “GENERAL CHASSIS” on page
Side cover (left/right)
Refer to “GENERAL CHASSIS” on page
Air scoop (left/right)
Refer to “GENERAL CHASSIS” on page
Fuel tank
Refer to “FUEL TANK” on page 7-1.
Exhaust pipe/Silencer
Refer to “ENGINE REMOVAL” on page 5-6.
Air filter case
Refer to “THROTTLE BODY” on page 7-4.
Throttle body
Refer to “THROTTLE BODY” on page 7-4.
Clutch cable
Refer to “CLUTCH” on page 5-48.
Shift pedal/Drive chain
Refer to “SHIFT SHAFT” on page 5-56.
Refer to “CHAIN DRIVE” on page 4-66.
1
Engine guard
1
2
Brake pedal
1
3
Spring
1
4
Cylinder head breather hose
1
5
Drive sprocket cover
1
6
Drive chain guide
1
7
Drive sprocket
1
7 N
・
m (0.7 k
g
f
・
m, 5.2 lb
・
ft)
3
4 N
・
m (
3
.4 k
g
f
・
m, 25 lb
・
ft)
8
5 N
・
m (
8
.5 k
g
f
・
m, 6
3
lb
・
ft)
75 N
・
m (7.5 k
g
f
・
m, 55 lb
・
ft)
3
4 N
・
m (
3
.4 k
g
f
・
m, 25 lb
・
ft)
5
3
N
・
m (5.
3
k
g
f
・
m,
3
9 lb
・
ft)
55 N
・
m (5.5 k
g
f
・
m, 41 lb
・
ft)
26 N
・
m (2.6 k
g
f
・
m, 19 lb
・
ft)
3
4 N
・
m (
3
.4 k
g
f
・
m, 25 lb
・
ft)
45 N
・
m (4.5 k
g
f
・
m,
33
lb
・
ft)
7 N
・
m (0.7 k
g
f
・
m, 5.2 lb
・
ft)
1
2
3
4
5
6
7
Summary of Contents for YZ250FX 2021
Page 6: ...EAM20162 YAMAHA MOTOR CORPORATION U S A YZ MOTORCYCLE LIMITED WARRANTY ...
Page 10: ......
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 153: ...HANDLEBAR 4 39 Throttle grip free play 3 0 6 0 mm 0 12 0 24 in ...
Page 166: ...FRONT FORK 4 52 1 ...
Page 184: ...CHAIN DRIVE 4 70 ...
Page 189: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 5 3 1 Oil filter element 2 Oil pump ...
Page 190: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 5 4 1 Intake camshaft 2 Exhaust camshaft ...
Page 264: ...TRANSMISSION 5 78 ...
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: ...YZ250FXM 2021 WIRING DIAGRAM BAJ 2819U 11_WD indd 1 2020 06 29 15 46 05 ...
Page 378: ...YZ250FXM 2021 WIRING DIAGRAM BAJ 2819U 11_WD indd 2 2020 06 29 15 46 06 ...