6-2
IGNITION SYSTEM
IGNITION SYSTEM
INSPECTION STEPS
Use the following steps for checking the possibility of the malfunctioning engine being attributable to ignition system failure
and for checking the spark plug which will not spark.
*marked: Only when the ignition checker is used.
• Remove the following parts before inspection.
1. Seat
2. Fuel tank
• Use the following special tools in this inspection.
Spark gap test
Spark
→
*Clean or replace spark plug.
No spark
↓
Check entire ignition system for connection.
No good
→
Repair or replace.
OK
↓
Check engine stop switch.
No good
→
Replace.
OK
↓
Check ignition coil. (primary coil and secondary
coil)
No good
→
Replace.
OK
↓
Check spark plug cap.
No good
→
Replace.
OK
↓
Check CDI magneto. (pickup coil and charging
coil)
No good
→
Replace.
OK
↓
Replace CDI unit.
Dynamic spark tester:
YM-34487
Ignition checker:
90890-06754
Pocket tester:
YU-3112-C/90890-03112
6
Summary of Contents for YZ125X1
Page 2: ...1C3 9 33_cover 07 6 14 9 59 AM Page 2...
Page 3: ...YZ125 X X1 1C3 28199 33 E0 2008 OWNER S SERVICE MANUAL...
Page 4: ......
Page 87: ...4 32 WATER PUMP...
Page 131: ...5 30 STEERING 9 Bearing race 2 Refer to removal section Order Part name Q ty Remarks...
Page 159: ......
