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IGNITION SYSTEM
8-3
EAM30278
TROUBLESHOOTING
The ignition system fails to operate (no spark or intermittent spark).
TIP
Before troubleshooting, remove the following part(s):
1. Side cover (left/right)
2. Seat
3. Fuel tank
4. Air scoop (left/right)
5. Air filter case cover
1. Check the ignition system wire har-
ness connections.
NG
Reconnect.
OK
2. Check the fuse(s).
Refer to “CHECKING THE FUSES”
NG
Replace the fuse(s).
OK
3. Check the battery.
Refer to “CHECKING AND
NG
•
Clean the battery terminals.
•
Recharge or replace the battery.
OK
4. Check the spark plug.
Refer to “CHECKING THE SPARK
NG
Correct or replace the spark plug.
OK
5. Check the ignition spark gap.
Refer to “CHECKING THE IGNI-
OK
The ignition system circuit is OK.
NG
6. Check the ignition coil.
Refer to “CHECKING THE IGNI-
NG
Replace the ignition coil.
OK
7. Check the engine stop switch.
Refer to “CHECKING THE
NG
Replace the engine stop switch.
OK
8. Check the crankshaft position sen-
sor.
NG
Replace the crankshaft position sensor.
OK
Содержание YZ450FX 2019
Страница 7: ...EAM20162 YAMAHA MOTOR CORPORATION U S A YZ MOTORCYCLE LIMITED WARRANTY ...
Страница 10: ......
Страница 12: ......
Страница 63: ...LUBRICATION POINTS AND LUBRICANT TYPES 2 20 ...
Страница 66: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 23 ...
Страница 68: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 25 ...
Страница 69: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 26 1 Connecting rod 2 Oil nozzle 3 Crankshaft ...
Страница 70: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 27 ...
Страница 71: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 28 1 Connecting rod 2 Engine oil check bolt 3 Crankshaft 4 Oil pump ...
Страница 72: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 29 ...
Страница 73: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 30 1 Oil filter element 2 Oil pump 3 Oil strainer ...
Страница 74: ...CABLE ROUTING DIAGRAM 2 31 EAM20152 CABLE ROUTING DIAGRAM ...
Страница 76: ...CABLE ROUTING DIAGRAM 2 33 ...
Страница 78: ...CABLE ROUTING DIAGRAM 2 35 ...
Страница 80: ...CABLE ROUTING DIAGRAM 2 37 ...
Страница 82: ...CABLE ROUTING DIAGRAM 2 39 ...
Страница 84: ...CABLE ROUTING DIAGRAM 2 41 ...
Страница 86: ...CABLE ROUTING DIAGRAM 2 43 ...
Страница 126: ...ELECTRICAL SYSTEM 3 38 ...
Страница 178: ...FRONT FORK 4 50 1 ...
Страница 196: ...CHAIN DRIVE 4 68 ...
Страница 265: ...CRANKCASE 5 66 4 45 mm 1 77 in 5 60 mm 2 36 in 6 75 mm 2 95 in 5 6 4 5 5 4 4 4 6 2 3 1 2 LT 5 6 ...
Страница 274: ...TRANSMISSION 5 75 ...
Страница 282: ...WATER PUMP 6 7 ...
Страница 295: ......
Страница 296: ...IGNITION SYSTEM 8 1 EAM20142 IGNITION SYSTEM EAM30277 CIRCUIT DIAGRAM ...
Страница 300: ...ELECTRIC STARTING SYSTEM 8 5 EAM20143 ELECTRIC STARTING SYSTEM EAM30279 CIRCUIT DIAGRAM ...
Страница 304: ...CHARGING SYSTEM 8 9 EAM20144 CHARGING SYSTEM EAM30282 CIRCUIT DIAGRAM ...
Страница 307: ...CHARGING SYSTEM 8 12 ...
Страница 308: ...SIGNALING SYSTEM 8 13 EAM20154 SIGNALING SYSTEM EAM30348 CIRCUIT DIAGRAM ...
Страница 312: ...COOLING SYSTEM For JPN 8 17 EAM20155 COOLING SYSTEM For JPN EAM30350 CIRCUIT DIAGRAM ...
Страница 315: ...COOLING SYSTEM For JPN 8 20 ...
Страница 316: ...FUEL INJECTION SYSTEM 8 21 EAM20145 FUEL INJECTION SYSTEM EAM30284 CIRCUIT DIAGRAM ...
Страница 341: ...FUEL INJECTION SYSTEM 8 46 ...
Страница 342: ...FUEL PUMP SYSTEM 8 47 EAM20146 FUEL PUMP SYSTEM EAM30287 CIRCUIT DIAGRAM ...
Страница 345: ...FUEL PUMP SYSTEM 8 50 ...
Страница 346: ...ELECTRICAL COMPONENTS 8 51 EAM20147 ELECTRICAL COMPONENTS 1 2 3 4 6 7 8 9 5 ...
Страница 348: ...ELECTRICAL COMPONENTS 8 53 1 2 3 4 5 11 10 6 7 8 9 ...
Страница 350: ...ELECTRICAL COMPONENTS 8 55 EAM30289 CHECKING THE SWITCHES Y W P Sb 3 1 4 2 P Sb B W R L B R Y W B ...
Страница 351: ...ELECTRICAL COMPONENTS 8 56 1 Engine stop switch 2 Mode switch 3 Gear position switch 4 Engine start switch ...
Страница 372: ...LIST OF SELF DIAGNOSTIC AND FAIL SAFE ACTIONS 9 7 ...
Страница 382: ...CHASSIS 10 9 ...
Страница 384: ......
Страница 387: ...YZ450FXK 2019 WIRING DIAGRAM B3J 28199 10_W D indd 1 2018 04 18 11 44 57 ...
Страница 388: ...YZ450FXK 2019 WIRING DIAGRAM B3J 28199 10_W D indd 2 2018 04 18 11 44 57 ...