IGNITION SYSTEM
54
• At operating speed, the ignition should produce
voltage approaching 12,000. See Figure 7.11.
• At pull-over speed (~
600 RPM), voltage should
be at least 10,000V. See Figure 7.12.
NOTE: Flash-over voltage will vary with spark
plug condition and gap.
NOTE: Pull-over speed may vary from operator
to operator.
NOTE: Failure of the magnets in the flywheel is
exceedingly rare. To test the magnets, simply
hold an item made of ferrous metal roughly 1/4”
(.635cm) away from the magnets in the flywheel.
It should be drawn to the flywheel. A wrench or
screwdriver is suitable for this test.
Figure 7.11
1 reticle = 4,000 Volts
waveform is
3 reticles tall
Figure 7.12
Pull-over speed: waveform is half-way
between 2nd and 3rd reticle (10,000 V.)
Module removal
1. Unplug the spark plug.
2. Remove the Heatbox (snow engines) and intake
elbow by following the steps described in Chap
-
ter 3: Air Intake Systems.
3. Unhook the spark plug wire from the clip in the
carburetor insulator.
See Figure 7.13.
4. Remove the recoil assembly by following the
steps described in Chapter 6: Starter.
5. Remove the blower housing.
6. Disconnect the lead that runs from the module to
the stop switch.
7. Remove the module using a 10mm wrench.
Figure 7.13
Unhook spark
plug wire
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