FUEL PUMP SYSTEM
8-54
EASB29B344
TROUBLESHOOTING
The fuel pump fails to operate.
TIP
Before troubleshooting, remove the following part(s):
1. Seat
2. Side cover (left/right)
3. Air scoop (left/right)
4. Fuel tank
1. Check the fuse.
NG
Replace the fuse(s).
OK
2. Check the battery.
NG
• Clean the battery terminals.
• Recharge or replace the battery.
OK
3. Check the engine stop switch.
NG
Replace the engine stop switch.
OK
4. Check fuel pressure.
NG
Replace the fuel pump.
OK
5. Check the fuel pump system wire
harness connections.
NG
Properly connect or repair the fuel pump
system’s wiring.
OK
Replace the ECU.
Summary of Contents for YZ 2017 Series
Page 6: ...EASB916006 YAMAHA MOTOR CORPORATION U S A YZ MOTORCYCLE LIMITED WARRANTY...
Page 10: ......
Page 63: ...LUBRICATION POINTS AND LUBRICANT TYPES 2 22...
Page 66: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 25...
Page 68: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 27...
Page 70: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 29...
Page 72: ...CABLE ROUTING DIAGRAM 2 31 EASB29B065 CABLE ROUTING DIAGRAM...
Page 74: ...CABLE ROUTING DIAGRAM 2 33...
Page 76: ...CABLE ROUTING DIAGRAM 2 35...
Page 78: ...CABLE ROUTING DIAGRAM 2 37...
Page 80: ...CABLE ROUTING DIAGRAM 2 39...
Page 82: ...CABLE ROUTING DIAGRAM 2 41...
Page 84: ...CABLE ROUTING DIAGRAM 2 43...
Page 86: ...CABLE ROUTING DIAGRAM 2 45...
Page 198: ...CHAIN DRIVE 4 70...
Page 262: ...OIL PUMP AND BALANCER GEAR 5 61 a 2 10 b 2 9 1 b 5 3 a 4 10 5 9 3 E c d 6 7 8 8 b 6...
Page 319: ...CHARGING SYSTEM 8 15...
Page 327: ...COOLING SYSTEM For JPN 8 23...
Page 359: ...FUEL PUMP SYSTEM 8 55...
Page 360: ...ELECTRICAL COMPONENTS 8 56 EASB29B345 ELECTRICAL COMPONENTS EASB29B346 9 10 11 1 3 2 4 5 6 7 8...
Page 362: ...ELECTRICAL COMPONENTS 8 58 11 10 9 2 3 1 6 7 8 4 5...
Page 364: ...ELECTRICAL COMPONENTS 8 60 EASB29B347 CHECKING THE SWITCHES 4 1 3 2 B B Sb B B B B B B B B...