ENGINE
3-8
5. Adjust:
•
Valve clearance
a. Remove the camshaft (intake and ex-
haust).
Refer to “CAMSHAFT” on page 5-10.
b. Remove the valve lifter “2” and the adjust-
ing pad “3” with a valve lapper “1”.
TIP
•
Place a cloth in the timing chain space to pre-
vent adjusting pads from falling into the crank-
case.
•
Identity each valve lifter and adjusting pad po-
sition very carefully so that they can be rein-
stalled in their original place.
c. Check the number on the originally in-
stalled adjusting pad.
TIP
•
The adjusting pad number “a” is indicated on
the top of the adjusting pad.
•
For the number on the originally installed ad-
justing pad, convert the last digit of adjusting
pad number as per the below table.
d. Select an adjusting pad with a proper
valve clearance from the adjusting pad se-
lection table.
TIP
•
There are 25 types of adjusting pads, ranging
from 1.20 mm (0.0472 in) to 2.40 mm (0.0945
in), in increments of 0.05 mm (0.0020 in).
•
The field where the number on the originally in-
stalled adjusting pad and the measured valve
clearance intersect shows the adjusting pad
number to replace.
Example:
Pad number = 148
Rounded value = 150
e. Install the new adjusting pads “4” and the
valve lifters “5”.
NOTICE
ECA24310
Do not twist adjusting pads and valve lifters
forcibly during installation.
TIP
•
Apply the engine oil on the valve lifters.
•
Apply molybdenum disulfide oil to the valve
stem ends.
•
Check that the valve lifters turn smoothly when
rotated with your finger.
•
Make sure that valve lifters and adjusting pads
are installed in place.
Valve lapper (ø14)
90890-04101
Valve lapper (ø14)
YM-A8998
1
1
3
2
2
3
Last digit of pad num-
ber
Rounded value
0, 1 or 2
0
4, 5 or 6
5
8 or 9
10
Содержание YZ450FP 2023
Страница 6: ...EAM20162 YAMAHA MOTOR CORPORATION U S A YZ MOTORCYCLE LIMITED WARRANTY...
Страница 10: ......
Страница 44: ...MOTORCYCLE CARE AND STORAGE 1 32...
Страница 61: ...TIGHTENING TORQUES 2 16...
Страница 66: ...CABLE ROUTING DIAGRAM 2 21 Frame and engine right side view 1 A B 2 C 3 4 D 5 6 E 7 9 8 13 12 10 1 11...
Страница 68: ...CABLE ROUTING DIAGRAM 2 23 Handlebar front view 6 5 D 4 3 2 B 1 A 8 F H I 5 10 G 7 E 8 7 E 2 3 9 C J...
Страница 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...
Страница 74: ...CABLE ROUTING DIAGRAM 2 29 Rear brake right side view 8 C C C D D E E F G B H 4 3 2 1 7 6 5 A A...
Страница 76: ...CABLE ROUTING DIAGRAM 2 31...
Страница 154: ...REAR BRAKE 4 38 system Refer to BLEEDING THE HYDRAULIC BRAKE SYSTEM on page 3 26...
Страница 194: ...CHAIN DRIVE 4 78...
Страница 254: ...SHIFT SHAFT 5 58 TIP Align the punch mark a on the shift shaft with the punch mark b in the shift pedal 1 1 1 2 2 a b...
Страница 267: ...CRANKCASE 5 71 6 45 mm 1 77 in 7 60 mm 2 36 in 8 75 mm 2 95 in 1 2 3 3 4 5 6 6 6 8 8 8 7 7 7 LT...
Страница 278: ...TRANSMISSION 5 82...
Страница 300: ...IGNITION SYSTEM 8 1 EAM20142 IGNITION SYSTEM EAM30277 CIRCUIT DIAGRAM...
Страница 305: ...IGNITION SYSTEM 8 6...
Страница 306: ...ELECTRIC STARTING SYSTEM 8 7 EAM20143 ELECTRIC STARTING SYSTEM EAM30279 CIRCUIT DIAGRAM...
Страница 310: ...CHARGING SYSTEM 8 11 EAM20144 CHARGING SYSTEM EAM30282 CIRCUIT DIAGRAM...
Страница 311: ...CHARGING SYSTEM 8 12 2 AC magneto 3 Rectifier regulator 4 Engine ground 5 Frame ground 6 Battery 7 Fuse...
Страница 313: ...CHARGING SYSTEM 8 14...
Страница 314: ...FUEL INJECTION SYSTEM 8 15 EAM20145 FUEL INJECTION SYSTEM EAM30284 CIRCUIT DIAGRAM B...
Страница 339: ...FUEL INJECTION SYSTEM 8 40...
Страница 340: ...FUEL PUMP SYSTEM 8 41 EAM20146 FUEL PUMP SYSTEM EAM30287 CIRCUIT DIAGRAM...
Страница 356: ...ELECTRICAL COMPONENTS 8 57...
Страница 372: ...SELF DIAGNOSTIC FUNCTION AND DIAGNOSTIC CODE TABLE 9 15...
Страница 382: ...CHASSIS 10 9...
Страница 384: ......
Страница 386: ......
Страница 387: ...B YZ450FP 2023 WIRING DIAGRAM BHR 2819U 10_W D indd 1 2022 08 09 13 16 06...
Страница 388: ...ON OFF PUSH FREE PUSH FREE B YZ450FP 2023 WIRING DIAGRAM BHR 2819U 10_W D indd 2 2022 08 09 13 16 06...