Checking Coil / Cdi Unit Output - Suzuki DF 25 Service Manual

CKP SENSOR
09930-99320 : Digital tester
Tester range : (Resistance)
1. Disconnect CKP sensor lead wire connector from CDI unit.
2. Connect tester probe to sensor lead wires as shown.
CKP sensor
No.1
No.2
3. Measure resistance
CKP sensor resistance :
Red – Black
Red / White – White / Black 148 – 222
If measurement exceeds specification, replace CKP sensor.

CHECKING COIL / CDI UNIT OUTPUT

POWER SOURCE COIL
09930-89251 : 6 pin connector test cord
Peak voltmeter Stevens CD-77
Tester range : POS 500
1. Disconnect power source coil lead wire connector from CDI
unit.
2. Connect the test cord as shown.
3. Connect tester probe to coil lead wires as shown.
Tester probe connection
Red (+)
White
Brown
4. Remove all spark plugs.
5. Crank with recoil starter or starter motor , then measure volt-
age.
Power source coil output :
White – Green
Brown – Green
If measurement exceeds specification, replace power source coil.
Tester probe connection
Red (+) Black (–)
Red
Red/White White/Black
148 – 222
Black (–)
Green
Green
21 V or over
21 V or over
Black
ENGINE CONTROL 3-9