Chapter 7: Ignition System
70
4d. At operating speed, the ignition should pro-
duce voltage approaching 12,000.
See Figure 7.9.
4e. At pull-over speed (~
600 RPM), voltage
should be at least 10,000V.
See Figure 7.10.
NOTE: Flash-over voltage will vary with spark
plug condition and gap.
NOTE: Pull-over speed may vary from operator
to operator.
4f. Resistance in the primary windings of the
ignition module, measured between the
spade terminal and the laminations, was
observed to be in the 550-650 Ω range.
See Figure 7.11.
4g. Resistance in the secondary windings of the
ignition module, measured between the
spark plug terminal and the laminations,
was observed to be in the 8K-9KΩ range.
See Figure 7.12.
NOTE: There may be slight variation in specifi-
cation due to production variation and other fac-
tors such as temperature.
Figure 7.9
1 reticle = 4,000 Volts
waveform is
3 reticles tall
Figure 7.10
Pull-over speed: waveform is half-way
between 2nd and 3rd reticle (10,000 V.)
Figure 7.11
Probe to
laminations
Probe to stop switch
spade terminal
Figure 7.12
Probe to spark
plug terminal
Probe to laminations
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