Ignition System Troubleshooting - Yamaha FZ-16 Service Manual

TROUBLESHOOTING
The ignition system is not working (no spark or intermittent spark).
NOTE:
•
Before troubleshooting, remove the following parts:
1.
Seat
2.
Side cover 1 and 2
3.
Fuel tank
1. Check the fuse.
See the section
"CHECKING THE FUSE"
on page 7-34.
OK ↓
2. Check the battery.
See the section
"CHECKING AND CHARGING
BATTERY "on page 7-34.
OK ↓
3. Check the spark plug.
See the section
"CHECKING THE SPARK" in
page 3-7.
OK ↓
4. Check the spark plug cap.
See the section
"CHECKING THE HOOD
SPARK PLUG "on page 7-39.
↓
OK
5. Check the ignition coil.
See the section
"CHECKING THE COIL
ON "on page 7-39.
OK ↓
6. Check the position sensor
crankshaft.
See the section
"CHECK SENSOR
CRANKSHAFT POSITION "in the
page 7-40.
OK ↓
7. Check main switch.
See the section
"CHECKING THE SWITCH
MAIN "on page 7-30.
↓
OK
8.
Check the TPS
See the section
"TPS VERIFICATION" on
page 7-43
OK ↓
IGNITION SYSTEM
NG →
Replace the fuse.
NG →
• Clean the battery terminals
• Recharge or replace battery.
NG →
Re-calibrate or replace the spark plug.
NG →
Replace the spark plug cap.
NG →
Replace the ignition coil.
NG →
Replace the throttle position sensor
of the crankshaft.
NG →
Replace the main switch.
NG →
Replace the TPS.
7-3