WS8 Primary & Secondary Ignition Patterns

Primary Voltage Patterns

I set up a ignition oscilloscope to view the ignition patterns. The pattern is normal, the 200 volt is caused by the windings. The burn voltage is 35 volts, this is because it takes lots to start of but not so much to continue.

Primary Ignition 

Cyl 1         Cyl 2         Cyl 3         Cyl 4  

200v         200v          200v         200v           Firing Voltage

35v            35v           35v            35v            Burn Voltage

1.7ms        1.7ms        1.7ms        1.7ms         Burn Time

5.4ms        5.4ms        5.4ms        5.4ms         Dwell Time

The pattern shows us the dwell time, the voltage at ignition, burn time and voltage. This can show the spark is working.

Secondary Voltage Patterns

I set up the ignition oscilloscope to test the secondary windings.

The pattern looks good, i can see that the dwell time seams long and the firing voltage is very strong.

Snap Acceleration 

Cyl 1         Cyl 2         Cyl 3         Cyl 4  

  8               8                8                8           Firing Voltage (KV)

  .6              .6               .6               .6          Burn Time (ms)

 1815        1815         1815          1815        Snap Acceleration

This show that the Firing Voltage becomes higher and the Burn Time is lower.

Next i disconnected one spark plug lead and shorted to the engine using a jumper wire.   

Started the engine and let it idle, only for a short time. These are the results.

Cyl 1         Cyl 2         Cyl 3         Cyl 4  

  3                3               3               3           Firing Voltage (KV)

 1.5             1.5            1.5            1.5         Burn Time (ms) 

Spark Tester

Cyl 1         Cyl 2         Cyl 3         Cyl 4  

  2                2               2                2           Firing Voltage (KV)

  1                1               1                1         Burn Time (ms)