Ignition System - Yamaha TZ125M1 Owner's Service Manual

EC620000

IGNITION SYSTEM

EC621022
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.
Spark gap test
OK
Check pulg cap.
OK
Check entire ignition
system for connection.
OK
Check "ENGINE STOP"
button.
OK
Check ignition coil.
OK
Check CDI magneto.
OK
Replace CDI unit.
*marked : Only when the ignition checker is used.
NOTE:
• Remove the following parts before inspection.
1) Cowling
2) Fuel tank
• Use the following special tools in this inspection.
C
Dynamic spark tester:
YM-34487
Ignition checker:
90890-06754
IGNITION SYSTEM
Spark
No good
No good
No good
No good
Primary coil
No good
Secondary coil
No good
Pick-up coil
No good
Source coil
A
Pocket tester:
YU-03112/90890-03112
6-2
ELEC
*Clean or replace
spark plug.
Replace.
Repair or replace.
Replace.
Replace.
Replace.
Replace.
Replace.
6