Yamaha YFM25RY Automobile User Manual


 
CARBURETOR HEATING SYSTEM
7-25
EAS27510
TROUBLESHOOTING
The carburetor heating system fails to operate.
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
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 main switch.
Refer to “CHECKING THE
SWITCHES” on page 7-29.
Replace the main switch.
4. Check the thermo switch.
Refer to “CHECKING THE
THERMO SWITCH” on page 7-41.
Replace the thermo switch.
5. Check the carburetor warmer.
Refer to “CHECKING THE CAR-
BURETOR WARMER” on page 7-
42.
Replace the carburetor warmer.
6. Check the entire carburetor heating
system’s wiring.
Refer to “CIRCUIT DIAGRAM” on
page 7-23.
Properly connect or repair the carbu-
retor heating system’s wiring.
This circuit is OK.