Ignition Coil - KEEWAY RKV125 Instruction And Maintenance Manual

2.5 Ignition Coil

2.5.1 Removal
Remove protecting plate of vehicle block.
Remove spark plug cap.
Remove primary lead wire of ignition coil.
Remove locknut of ignition coil and take out the ignition coil.
Install it in the reverse order of removal.
*Attention
The primary coil is installed with black/white wire connector.
2.5.2 Primary coil inspection
Measure the impedance between terminals of primary coil.
Standard value: 0.4Ω±10% (20℃)
Impedance value within the range is good.
Impedance value "∞" indicates broken wire inside the coil. The
coil shall be replaced.
2.5.3 Secondary coil
Attached with the spark plug, and measure the impedance
between lead-wire side of spark plug cap and terminal.
Standard value: 8-11KΩ (20℃)
Impedance value within the range is good.
Impedance value "∞" indicates broken wire inside the coil.
Remove the spark plug cap and measure impedance value
between primary side lead-wire of ignition coil cap and
negative terminal.
Standard value: 3-5.5KΩ±10% (20℃)