BASIC SERVICE INFORMATION
1-8
EAM20120
BASIC SERVICE INFORMATION
EAM30181
ELECTRICAL SYSTEM
Electrical parts handling
NOTICE
ECA16600
Never disconnect a battery lead while the en-
gine is running; otherwise, the electrical
components could be damaged.
NOTICE
ECA16751
When disconnecting the battery leads from
the battery, be sure to disconnect the nega-
tive battery lead first, then the positive bat-
tery lead. If the positive battery lead is
disconnected first and a tool or similar item
contacts the vehicle, a spark could be gener-
ated, which is extremely dangerous.
TIP
If a battery lead is difficult to disconnect due to
rust on the battery terminal, remove the rust us-
ing hot water.
NOTICE
ECA16760
Be sure to connect the battery leads to the
correct battery terminals. Reversing the bat-
tery lead connections could damage the
electrical components.
NOTICE
ECA16771
When connecting the battery leads to the
battery, be sure to connect the positive bat-
tery lead first, then the negative battery lead.
If the negative battery lead is connected first
and a tool or similar item contacts the vehi-
cle while the positive battery lead is being
connected, a spark could be generated,
which is extremely dangerous.
NOTICE
ECA16620
Handle electrical components with special
care, and do not subject them to strong
shocks.
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 ...