Inspection; Ignition Secondary Coil Resistance; Spark Plug Cap - BRP Johnson 4HP Service Manual

IGNITION AND ELECTRICAL

INSPECTION

INSPECTION

Ignition Secondary Coil Resistance

Measure the secondary coil resistance in the CDI and coil
unit.

Digital Voltmeter

Tester range: Ω (Resistance)
1. Remove the spark plug cap from the high-tension cord.
2. Measure the secondary coil resistance.
Tester probe connection
Probe
High-tension cord
Ignition secondary coil resistance: 8.2 – 12.4 kΩ
If the measurement is out of the specification, replace the
CDI and coil unit.

Spark Plug Cap


Digital Voltmeter

Tester range: Ω (Resistance)
Measure the spark plug cap resistance.
Tester probe connection
Probe
Cap end
Spark plug cap resistance: 7.5 – 12.5 kΩ
If the measurement is out of the specification, replace the
spark plug cap.
3-4
Other probe
Core
Other probe
Other cap end