Yamaha TT-R50E Manuel D'atelier Du Proprietaire page 342

EC620000
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.
Spark gap test
No Spark
Check entire ignition
system for connection.
OK
Check main switch.
OK
Check engine stop switch.
OK
Check ignition coil.
OK
Check AC magneto.
OK
Replace CDI unit.
NOTE:
• Remove the following parts before inspection.
1) Seat assembly
2) Air scoops (left and right)
3) Fuel tank
Refer to "FRONT FENDER, SEAT ASSEMBLY AND FUEL TANK" section in the CHAPTER 4.
• Use the following special tools in this inspection.
Opama pet-4000 spark checker:
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
Pickup coil
6 - 2
ELEC
Clean or replace
spark plug.
Repair or replace.
Replace.
Replace.
Replace.
Replace.
Replace.
Pocket tester:
YU-03112-C/90890-03112
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