Electrical WM 130/170/270 Repair
wc_tx000381gb.fm 92
11.5 WM 270 Ignition Coil Internal Circuit
11.6 Ignition Timing Characteristics
Ref. Description Ref. Description
1 Primary coil 6 Revolution sensing resistor
2 Power transistor 7 Secondary coil
3 Low speed ignition timing control
circuit
8 Spark plug
4 Advancing control circuit 9 Base resistor
5 Control thyristor
Linear Advancing