Troubleshooting - Yamaha YXR70FX Service Manual

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EBS01045

TROUBLESHOOTING

The ignition system fails to operate (no
spark or intermittent spark).
Check:
1. main, ignition and backup fuses
2. battery
3. spark plug
4. ignition spark gap
5. spark plug cap resistance
6. ignition coil resistance
7. main switch
8. crankshaft position sensor resistance
9. lean angle sensor
10.wiring connections (of the entire ignition
system)
TIP:
_
• Before troubleshooting, remove the following
part(s):
1. rear console
2. front console
• Troubleshoot with the following special
tool(s).
Ignition checker
90890-06754
Opama pet-4000 spark checker
YM-34487
Pocket tester
90890-03112
Analog pocket tester
YU-03112-C
IGNITION SYSTEM
EBS01043
1. Main, ignition and backup fuses
• Check the main, ignition and backup fuses
for continuity.
Refer to "CHECKING THE FUSES" in
chapter 3.
• Are the main, ignition and backup fuses
OK?
YES
EBS01044
2. Battery
• Check the condition of the battery.
Refer to "CHECKING AND CHARGING
THE BATTERY" in chapter 3.
Minimum open-circuit voltage
12.8 V or more at 20 °C (68 °F)
• Is the battery OK?
YES
9 - 10
+
ELEC
NO
Replace the fuse(s).
NO
• Clean the battery
terminals.
• Recharge
or
re-
place the battery.

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Rhino 700 2008Rhino 700fi 2008Rhino yxr70fx 2008

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