Measurement Method

1. Clamp secondary pickup around spark plug cable.


NOTE
1. The ignition voltage peak appears reversely between when the spark plug cables of the cylinders No.4, No. 5 and No. 6 are clamped and when those of the cylinders No. 1, No. 2 ai,d No. 3 are clamped.
2. Since the 2-cylinder simultaneous ignition system is employed, the wave4orm for two cylinder appears group by group when the wave4orm is observed. (Cylinder No. 1 - cylinder No. 4, cylinder No. 2 - cylinder No. 5 and cylinder No. 3 - cylinder No. 6 as the respective groups) Here, the wave-form is observed for the cylinder whose spark plug cable is clamped with the secondary pickup.


2. Clamp the spark plug cable with the trigger pickup.


NOTE
1. Clamp the spark plug cable of the cylinders No.1, No. 2 or No. 3 which belongs to the same group of the cylinders clamped with the secondary pickup.
2. Though it is difficult to isolate the cylinder of the wave-form, the wave-form of the cylinders clamped with the secondary pickup is stable. Use this as a reference for isolation.