Service manual

FUEL INJECTION SYSTEM
8-31
EAS27370
TROUBLESHOOTING
The ignition system fails to operate (no spark or intermittent spark).
NOTE:
• Before troubleshooting, remove the following part(s):
1 Rider and passenger seat
2 Fuel tank
3 Air filter case
NG→
OK↓
NG→
OK↓
NG→
OK↓
NG→
OK↓
NG→
OK↓
NG→
OK↓
NG→
OK↓
1 Check the fuses.
(Main, backup, fuel injection and
ignition)
Refer to "CHECKING THE FUSES"
on page 8-85.
Replace the fuse(s).
2 Check the battery.
Refer to "CHECKING AND
CHARGING THE BATTERY" on
page 8-85.
• Clean the battery terminals.
• Recharge or replace the battery.
3 Check the spark plugs.
Refer to "CHECKING THE SPARK
PLUGS" on page 3-9.
Re-gap or replace the spark plugs.
4 Check the ignition coils.
Refer to "CHECKING THE IGNI-
TION COILS" on page 8-91.
Replace the ignition coils.
5 Check the crankshaft position sen-
sor.
Refer to "CHECKING THE
CRANKSHAFT POSITION SEN-
SOR" on page 8-92.
Replace the crankshaft position sen-
sor.
6 Check the relay unit (fuel pump
relay).
Refer to "CHECKING THE
RELAYS" on page 8-88.
Replace the relay unit.
7 Check the fuel pump.
Refer to "CHECKING THE
SWITCHES" on page 8-81.
Replace the fuel pump.