Yamaha YFM25RY Automobile User Manual


 
IGNITION SYSTEM
7-3
EAS27130
TROUBLESHOOTING
The ignition system fails to operate (no spark or intermittent spark).
TIP
Before troubleshooting, remove the following part(s):
1. Seat
2. Front panel
3. Front fender
4. Rear fender
5. Side cover
NG
OK
NG
OK
NG
OK
OK
NG
NG
OK
NG
OK
NG
OK
1. Check the fuse.
Refer to “CHECKING THE FUSES”
on page 7-33.
Replace the fuse.
2. Check the battery.
Refer to “CHECKING AND
CHARGING THE BATTERY” on
page 7-33.
Clean the battery terminals.
Recharge or replace the battery.
3. Check the spark plug.
Refer to “CHECKING THE SPARK
PLUG” on page 3-7.
Re-gap or replace the spark plug.
4. Check the ignition spark gap.
Refer to “CHECKING THE IGNI-
TION COIL” on page 7-38.
Ignition system is OK.
5. Check the spark plug cap.
Refer to “CHECKING THE SPARK
PLUG CAP” on page 7-38.
Replace the spark plug cap.
6. Check the ignition coil.
Refer to “CHECKING THE IGNI-
TION COIL” on page 7-38.
Replace the ignition coil.
7. Check the pickup coil.
Refer to “CHECKING THE PICKUP
COIL” on page 7-39.
Replace the pickup coil.