Yamaha N MAX GPD150-A 2015, Service Manual

Page: 328 / 450

IGNITION SYSTEM
8-3
EAS30492
TROUBLESHOOTING
The ignition system fails to operate (no spark or intermittent spark).
TIP
• Before troubleshooting, remove the following part(s):
1. Battery cover
2. Front side covers
3. Fuel tank cover
4. Storage box
5. Footrest board assemblies
6. Front cowling assembly
NG
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OK
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NG
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OK
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NG
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OK
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OK
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NG
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NG
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OK
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OK
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OK
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1. Check the fuse.
(Main 1)
Refer to “CHECKING THE FUS-
ES” on page 8-99.
Replace the fuse.
2. Check the battery.
Refer to “CHECKING AND
CHARGING THE BATTERY” on
page 8-99. • Clean the battery terminals.
• Recharge or replace the battery.
3. Check the spark plug.
Refer to “CHECKING THE SPARK
PLUG” on page 3-4. Re-gap or replace the spark plug.
4. Check the ignition spark gap.
Refer to “CHECKING THE IGNI-
TION SPARK GAP” on page 8-105. Ignition system is OK.
5. Check the spark plug cap.
Refer to “CHECKING THE SPARK
PLUG CAP” on page 8-104. Replace the spark plug cap.
6. Check the ignition coil.
Refer to “CHECKING THE IGNI-
TION COIL” on page 8-104. Replace the ignition coil.
7. Check the crankshaft position sen-
sor.
Refer to “CHECKING THE CRANK-
SHAFT POSITION SENSOR” on
page 8-105.
Replace the stator coil assembly.