Troubleshooting - Yamaha 2007 FZ6-NA Service Manual

EAS27140

TROUBLESHOOTING

The ignition system fails to operate (no spark or intermittent spark).
NOTE:
• Before troubleshooting, remove the following part(s):
1.Seat
2.Fuel tank
3.Side cowlings
1. Check the fuses.
(Main and ignition)
Refer to "CHECKING THE
FUSES" on page 8-113.
OK↓
2. Check the battery.
Refer to "CHECKING AND
CHARGING THE BATTERY" on
page 8-114.
OK↓
3. Check the spark plugs.
Refer to "CHECKING THE SPARK
PLUGS" on page 3-11.
OK↓
4. Check the spark plug caps.
Refer to "CHECKING THE SPARK
PLUG CAPS" on page 8-121.
OK↓
5. Check the ignition coils.
Refer to "CHECKING THE IGNI-
TION COILS" on page 8-121.
OK↓
6. Check the crankshaft position
sensor.
Refer to "CHECKING THE
CRANKSHAFT POSITION SEN-
SOR" on page 8-122.
OK↓
7. Check the main switch.
Refer to "CHECKING THE
SWITCHES" on page 8-109.
OK↓
NG→
Replace the fuse(s).
NG→
• Clean the battery terminals.
• Recharge or replace the battery.
NG→
Re-gap or replace the spark plugs.
NG→
Replace the spark plug caps.
NG→
Replace the ignition coils.
NG→
Replace the crankshaft position sen-
sor.
NG→
Replace the main switch.
8-3
IGNITION SYSTEM