Yamaha SXV70SJ Supplementary Service Manual - Elec
8-4
–
+
ELEC
TROUBLESHOOTING
NO SPARK OR WEAK SPARK.
For VX700DX/VT700:
Check the main fuse and
“IGNITION” fuse.
Refer to “FUSE INSPECTION”
in CHAPTER 2.
OK
FAULTY
Replace the main fuse and/or “IGNITION” fuse.
For VX700DX/VT700:
Check the battery.
Refer to “BATTERY INSPECTION”
in CHAPTER 2.
OK
OUT OF SPECIFICATION
Replace and/or charge the battery.
Refer to “BATTERY CHARGING” in CHAPTER 2.
For VX700/SX700/MM700:
Check the condenser.
OK
OUT OF SPECIFICATION
Replace the condenser.
Check the stator coil and pickup coil.
OK
OUT OF SPECIFICATION
Replace the stator coil assembly.
Check the spark plug gap.
OK
OUT OF SPECIFICATION
Repair or replace the spark plug.
Check the spark plug cap resistance.
OK
OUT OF SPECIFICATION
Replace the spark plug cap.
Check the ignition coil resistance.
OK
OUT OF SPECIFICATION
Replace the ignition coil.
Check the engine stop switch, throttle
switch, carburetor switch and main
switch.
OK
FAULTY
Replace the handlebar switch (right), carburetor
switch, and/or main switch.
Check the load control relay.
OK
FAULTY
Replace the load cotrol relay.
IGNITION SYSTEM
*