Suzuki DF 25 Service Manual page 59

3-8 ENGINE CONTROL
Spark plug cap
1. Remove spark plug cap from high tension cord.
2. Connect tester probes to both contact ends of cap.
3. Measure resistance.
Spark plug cap resistance : 4 – 6 k
If measurement exceeds specification, replace spark plug cap.
POWER SOURCE COIL
09930-99320 : Digital tester
Tester range :
1. Disconnect power source coil lead wire connector from CDI
unit.
2. Connect tester probe to coil lead wires as shown.
Tester probe connection
Red (+)
White
Brown
3. Measure resistance
Power source coil resistance :
White – Green
Brown – Green
If measurement exceeds specification, replace power source coil.
(Resistance)
Black (–)
Green
Green
10.1 – 15.1
10.1 – 15.1