TRANSMISSION
5-79
EAM30156
CHECKING THE TRANSMISSION
1. Measure:
•
Main axle runout
(with a centering device and dial gauge “1”)
Out of specification
Replace the main axle.
2. Measure:
•
Drive axle runout
(with a centering device and dial gauge “1”)
Out of specification
Replace the drive axle.
3. Check:
•
Transmission gear
Blue discoloration/pitting/wear
Replace
the defective gear(s).
•
Transmission gear dog
Cracks/damage/rounded edges
Replace
the defective gear(s).
4. Check:
•
Transmission gear movement
Rough movement
Replace the defective
gear(s).
EAM30157
INSTALLING THE TRANSMISSION
1. Install:
•
4th pinion gear (22T) “1”
•
3rd pinion gear (20T) “2”
•
Collar “3”
•
5th pinion gear (21T) “4”
•
2nd pinion gear (16T) “5”
(to the main axle “6”)
TIP
Before installation, apply molybdenum disulfide
oil to the inner and end surface of the idler gear
and to the inner surface of the sliding gear, then
install.
2. Install:
•
Collar “1”
•
2nd wheel gear (26T) “2”
•
5th wheel gear (21T) “3”
•
3rd wheel gear (27T) “4”
•
4th wheel gear (25T) “5”
•
Collar “6”
•
1st wheel gear (28T) “7”
•
O-ring “8”
(to the drive axle “9”)
TIP
•
Before installation, apply molybdenum disul-
fide oil to the inner and end surface of the idler
gear and the collar and to the inner surface of
the sliding gear, then install.
•
Apply the lithium-soap-based grease on the O-
ring.
3. Install:
•
Washer “1”
•
Circlip “2”
TIP
•
Be sure the circlip sharp-edged corner “a” is
Main axle runout limit
0.08 mm (0.0032 in)
Drive axle runout limit
0.08 mm (0.0032 in)
3
4
2
1
6
5
Ne
w
2
9
8
3
4
5
6
7
1
Ne
w
Summary of Contents for YZ450FP 2023
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 72: ...CABLE ROUTING DIAGRAM 2 27 Frame and battery top view 2 1 B 5 4 3 A 7 4 E 6 D 2 3 C...
Page 76: ...CABLE ROUTING DIAGRAM 2 31...
Page 154: ...REAR BRAKE 4 38 system Refer to BLEEDING THE HYDRAULIC BRAKE SYSTEM on page 3 26...
Page 194: ...CHAIN DRIVE 4 78...
Page 278: ...TRANSMISSION 5 82...
Page 300: ...IGNITION SYSTEM 8 1 EAM20142 IGNITION SYSTEM EAM30277 CIRCUIT DIAGRAM...
Page 305: ...IGNITION SYSTEM 8 6...
Page 306: ...ELECTRIC STARTING SYSTEM 8 7 EAM20143 ELECTRIC STARTING SYSTEM EAM30279 CIRCUIT DIAGRAM...
Page 310: ...CHARGING SYSTEM 8 11 EAM20144 CHARGING SYSTEM EAM30282 CIRCUIT DIAGRAM...
Page 313: ...CHARGING SYSTEM 8 14...
Page 314: ...FUEL INJECTION SYSTEM 8 15 EAM20145 FUEL INJECTION SYSTEM EAM30284 CIRCUIT DIAGRAM B...
Page 339: ...FUEL INJECTION SYSTEM 8 40...
Page 340: ...FUEL PUMP SYSTEM 8 41 EAM20146 FUEL PUMP SYSTEM EAM30287 CIRCUIT DIAGRAM...
Page 356: ...ELECTRICAL COMPONENTS 8 57...
Page 372: ...SELF DIAGNOSTIC FUNCTION AND DIAGNOSTIC CODE TABLE 9 15...
Page 382: ...CHASSIS 10 9...
Page 384: ......
Page 386: ......
Page 387: ...B YZ450FP 2023 WIRING DIAGRAM BHR 2819U 10_W D indd 1 2022 08 09 13 16 06...