Troubleshooting - Yamaha TMAX 2020 Service Manual

EAS30492

TROUBLESHOOTING

The ignition system fails to operate (no spark or intermittent spark).
TIP
• Before troubleshooting, remove the following part(s):
1. Front cowling assembly/Side panels
2. Center cover
3. Footboards/Side covers
4. Rear side cowling assembly (right)
1. Check the fuses.
(Main and ignition)
Refer to "CHECKING THE FUS-
ES" on page 8-93.
OK
2. Check the battery.
Refer to "CHECKING AND
CHARGING THE BATTERY" on
page 8-94.
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 IGNI-
TION SPARK GAP" on page 8-
103.
NG
5. Check the spark plug caps.
Refer to "CHECKING THE SPARK
PLUG CAPS" on page 8-102.
OK
6. Check the ignition coil.
Refer to "CHECKING THE IGNI-
TION COIL" on page 8-102.
OK
7. Check the ignition system relay.
Refer to "CHECKING THE RE-
LAYS" on page 8-94.
OK
NG Replace the fuse(s).
• Clean the battery terminals.
NG
• Recharge or replace the battery.
NG Re-gap or replace the spark plugs.
OK Ignition system is OK.
NG Replace the spark plug caps.
NG Replace the ignition coil.
NG Replace the ignition system relay.
8-5
IGNITION SYSTEM