Sym Fiddle III 50 Service Manual page 124

SYM
Ignition System
ET SENSOR
O
2
ACG/FLY
WHEEL
CPS CPS CPS CPS
Ignition system working principle
Adopts inductive ignition method, by measuring the operation condition of the engine, so that we can get
about the engine speed and throttle opening of three dimensional control ignition figure, and engine
temperature correction of two-dimensional ignition points, comprehensive figure, two ignition of the vehicle
to achieve accurate ignition control all condition. Another to meet the engine under different load
conditions of the ignition energy demand, according to the characteristics of the primary coil
magnetization time, dynamically control under different working conditions of the magnetization time,
ignition and precise control ignition energy under various working conditions,Not only output power of
engine can reach the maximum,but also improve the consumption rate of fuel.
Ignition system specifications illustration
1.Ignition timing: Before Top Dead Center 13°/2100RPM（according to the ignition map illustration）.
2.Spark plug: NGK CR8E clearance: 0.6~0.7mm
3.A.C.G. Crankcase position sensor coil impedance:80~160 (green/white –blue/yellow)
4.Ignition coil primary loop：3.6 ±10% (20ºC)，pri-inductor： 5mH±20%
5.Ignition coil second loop：14.0 K ± 20% (20ºC),pri-inductor 14mH±20%)
6.Battery type/capacity：12V 7A
4
. ELECTRONICALLY CONTROLLED CARBURETOR SYSTEM
TPS
SENSOR
ECU
BATTERY
Ignition coil
Spark
plug
4-5