Troubleshooting - Yamaha MTN1000 2016 Service Manual

EAS30492

TROUBLESHOOTING

The ignition system fails to operate (no spark or intermittent spark).
TIP
• Before troubleshooting, remove the following part(s):
1. Rider seat/Air scoop/Air scoop stay/Side cover
2. Fuel tank cover
3. Fuel tank
4. Air filter case
1. Check the fuses.
(Main, ignition and backup)
Refer to "CHECKING THE FUSES"
on page 8-194.
OK
2. Check the battery.
Refer to "CHECKING AND
CHARGING THE BATTERY" on
page 8-195.
OK
3. Check the spark plugs.
Refer to "CHECKING THE SPARK
PLUGS" on page 3-5.
OK
4. Check the ignition spark gap.
Refer to "CHECKING THE SPARK
PLUGS" on page 3-5.
NG
5. Check the ignition coils.
Refer to "CHECKING THE IGNI-
TION COILS" on page 8-200.
OK
6. Check the crankshaft position sen-
sor.
Refer to "CHECKING THE CRANK-
SHAFT POSITION SENSOR" on
page 8-201.
OK
7. Check the cylinder identification
sensor.
Refer to "CHECKING THE CYLIN-
DER IDENTIFICATION SENSOR"
on page 8-206.
OK
8. Check the main switch.
Refer to "CHECKING THE
SWITCHES" on page 8-191.
OK
Replace the fuse(s).
NG
• Clean the battery terminals.
• Recharge or replace the battery.
NG
Re-gap or replace the spark plug(s).
NG
Ignition system is OK.
OK
Replace the ignition coil(s).
NG
Replace the crankshaft position sensor.
NG
Replace the cylinder identification sensor.
NG
Replace the main switch.
NG
8-4
IGNITION SYSTEM