Service manual

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ELEC
IGNITION SYSTEM
EB802011
TROUBLESHOOTING
Check:
1. main and ignition fuses
2. battery
3. spark plugs
4. ignition spark gap
5. spark plug cap resistance
6. ignition coil resistance
7. pickup coil resistance
8. main switch
9. engine stop switch
10.neutral switch
11.sidestand switch
12.diode
13.relay unit (diode)
14.wiring
(of the entire ignition system)
NOTE:
• Before troubleshooting, remove the fol-
lowing part(s):
1) rider seat
2) fuel tank
3) side covers
4) ignition coils
5) headlight lens unit
• Troubleshoot with the following special
tool(s).
The ignition system fails to operate (no
spark or intermittent spark).
Dynamic spark tester
YM-34487
Pocket tester
YU-03112
EB802400
YES
NO
1.Main and ignition fuses
• Check the main and ignition fuses for
continuity.
Refer to “CHECKING THE FUSES” in
chapter 3.
• Are the main and ignition fuses OK?
Replace the fuse(s).
EB802401
YES
NO
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?
• Clean the battery
terminals.
• Recharge or
replace the battery.
EB802403
YES
NO
3.Spark plugs
The following procedure applies to all of
the spark plugs.
• Check the condition of the spark plug.
• Check the spark plug type.
• Measure the spark plug gap.
Refer to “CHECKING THE SPARK
PLUGS” in chapter 3.
Standard spark plug
DPR7EA-9 (NGK)
X22EPR-U9 (DENSO)
Spark plug gap
0.8 ~ 0.9 mm (0.031 ~ 0.035 in)
• Is the spark plug in good condition, is it
of the correct type, and its gap within
specification?
Re-gap or replace
the spark plug.
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