Troubleshooting - Yamaha YZFR6V Service Manual

EAS27150

TROUBLESHOOTING

The ignition system fails to operate (no spark or intermittent spark).
NOTE:
• Before troubleshooting, remove the following part(s):
1. Rider seat
2. Fuel tank
3. Air filter case
4. Canister (for California only)
5. Side cowlings
6. Bottom cowlings
1. Check the fuses.
(Main and ignition)
Refer to "CHECKING THE FUS-
ES" on page 8-85.
OK ↓
2. Check the battery.
Refer to "CHECKING AND
CHARGING THE BATTERY" on
page 8-86.
OK ↓
3. Check the spark plugs.
Refer to "CHECKING THE SPARK
PLUGS" on page 3-8.
OK ↓
4. Check the ignition spark gap.
Refer to "CHECKING THE IGNI-
TION COILS" on page 8-92.
NG ↓
5. Check the ignition coils.
Refer to "CHECKING THE IGNI-
TION COILS" on page 8-92.
OK ↓
6. Check the crankshaft position sen-
sor.
Refer to "CHECKING THE CRANK-
SHAFT POSITION SENSOR" on
page 8-93.
OK ↓
7. Check the main switch.
Refer to "CHECKING THE
SWITCHES" on page 8-81.
OK ↓
NG →
Replace the fuse(s).
NG →
• Clean the battery terminals.
• Recharge or replace the battery.
NG →
Re-gap or replace the spark plug(s).
OK →
Ignition system is OK.
NG →
Replace the ignition coil(s).
NG →
Replace the crankshaft position sensor.
NG →
Replace the main switch.
8-4
IGNITION SYSTEM