![Yamaha YZ450FX 2019 Owner'S Service Manual Download Page 105](http://html.mh-extra.com/html/yamaha/yz450fx-2019/yz450fx-2019_owners-service-manual_946385105.webp)
ENGINE
3-17
b. Align the top dead center (TDC) mark “a” on
the rotor with the alignment mark “b” on the
crankcase cover.
TIP
Check that the alignment mark “c” on the cam-
shaft sprocket and the alignment mark “d” on the
intake camshaft sprocket are aligned with the
edge of the cylinder head.
c. Measure the valve clearance “e” using a
thickness gauge “1”.
TIP
Record the measured reading if the clearance is
incorrect.
▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲
5. Adjust:
•
Valve clearance
▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼
a. Remove the camshaft (intake and exhaust).
Refer to “CAMSHAFT” on page 5-11.
b. Remove the valve lifter “2” and the adjusting
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.
Thickness gauge
90890-03268
Feeler gauge set
YU-26900-9
b
a
d
c
e
e
Valve lapper (ø14)
90890-04101
Valve lapping tool (14mm)
YM-A8998
1
1
3
2
2
3
Summary of Contents for YZ450FX 2019
Page 7: ...EAM20162 YAMAHA MOTOR CORPORATION U S A YZ MOTORCYCLE LIMITED WARRANTY ...
Page 10: ......
Page 12: ......
Page 63: ...LUBRICATION POINTS AND LUBRICANT TYPES 2 20 ...
Page 66: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 23 ...
Page 68: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 25 ...
Page 69: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 26 1 Connecting rod 2 Oil nozzle 3 Crankshaft ...
Page 70: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 27 ...
Page 72: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 29 ...
Page 73: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 30 1 Oil filter element 2 Oil pump 3 Oil strainer ...
Page 74: ...CABLE ROUTING DIAGRAM 2 31 EAM20152 CABLE ROUTING DIAGRAM ...
Page 76: ...CABLE ROUTING DIAGRAM 2 33 ...
Page 78: ...CABLE ROUTING DIAGRAM 2 35 ...
Page 80: ...CABLE ROUTING DIAGRAM 2 37 ...
Page 82: ...CABLE ROUTING DIAGRAM 2 39 ...
Page 84: ...CABLE ROUTING DIAGRAM 2 41 ...
Page 86: ...CABLE ROUTING DIAGRAM 2 43 ...
Page 126: ...ELECTRICAL SYSTEM 3 38 ...
Page 178: ...FRONT FORK 4 50 1 ...
Page 196: ...CHAIN DRIVE 4 68 ...
Page 274: ...TRANSMISSION 5 75 ...
Page 282: ...WATER PUMP 6 7 ...
Page 295: ......
Page 296: ...IGNITION SYSTEM 8 1 EAM20142 IGNITION SYSTEM EAM30277 CIRCUIT DIAGRAM ...
Page 300: ...ELECTRIC STARTING SYSTEM 8 5 EAM20143 ELECTRIC STARTING SYSTEM EAM30279 CIRCUIT DIAGRAM ...
Page 304: ...CHARGING SYSTEM 8 9 EAM20144 CHARGING SYSTEM EAM30282 CIRCUIT DIAGRAM ...
Page 307: ...CHARGING SYSTEM 8 12 ...
Page 308: ...SIGNALING SYSTEM 8 13 EAM20154 SIGNALING SYSTEM EAM30348 CIRCUIT DIAGRAM ...
Page 312: ...COOLING SYSTEM For JPN 8 17 EAM20155 COOLING SYSTEM For JPN EAM30350 CIRCUIT DIAGRAM ...
Page 315: ...COOLING SYSTEM For JPN 8 20 ...
Page 316: ...FUEL INJECTION SYSTEM 8 21 EAM20145 FUEL INJECTION SYSTEM EAM30284 CIRCUIT DIAGRAM ...
Page 341: ...FUEL INJECTION SYSTEM 8 46 ...
Page 342: ...FUEL PUMP SYSTEM 8 47 EAM20146 FUEL PUMP SYSTEM EAM30287 CIRCUIT DIAGRAM ...
Page 345: ...FUEL PUMP SYSTEM 8 50 ...
Page 346: ...ELECTRICAL COMPONENTS 8 51 EAM20147 ELECTRICAL COMPONENTS 1 2 3 4 6 7 8 9 5 ...
Page 348: ...ELECTRICAL COMPONENTS 8 53 1 2 3 4 5 11 10 6 7 8 9 ...
Page 372: ...LIST OF SELF DIAGNOSTIC AND FAIL SAFE ACTIONS 9 7 ...
Page 382: ...CHASSIS 10 9 ...
Page 384: ......
Page 387: ...YZ450FXK 2019 WIRING DIAGRAM B3J 28199 10_W D indd 1 2018 04 18 11 44 57 ...
Page 388: ...YZ450FXK 2019 WIRING DIAGRAM B3J 28199 10_W D indd 2 2018 04 18 11 44 57 ...