5. Fuel Injection System
5-16
Ignition System
Principle of operation
The engine is equipped with a computerized ignition control system that collects signals from
CPS, TPS, ET Sensor, and T-MAP Sensor. Then, correspondence with engine RPM, this
8-bit microcomputer in the system controls ignition timing properly. The secondary coil
creates 25000~30000V high voltage to ignite the spark plug by means of the transistor
operation of the primary current entry from the ECU. This can maximize engine performance
and also decrease fuel consumption.
Specification
1. Ignition timing: BTDC 10°/ 1800RPM
2. Spark plug: NGK CR8E
Gap: 0.8mm
3. CPS pulse generator coil: 80~160Ω / 20ºC (G/W-LY)
4. Ignition coil
Primary circuit：0.63±0.03Ω(23ºC)
5. Battery:
Type: YTX9-BS / GTX9-BS
Capacity: 12V 8Ah
AC Generator
Flywheel (24-1 teeth)
TPS
T-MAP
ET Sensor
Regulator
rectifier
Transistor
ignition coil
Spark
plug
ECU
Battery
CPS
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