Kohler LH630-775 Service Manual page 93

Section 8
Electrical System and Components
Figure 8-2. Battery Voltage Test.
Kill Switch or ''Off''
Position of Key Switch
Figure 8-3. Capacitive Discharge Ignition System.
8.4
DC Voltmeter
Battery
0.008/0.012 in.
(0.20/0.30 mm)
Air Gap
Electronic CD Ignition Systems
Operation of CD Ignition Systems
Capacitive Discharge with Fixed Timing.
This system consists of the following components. See
Figure 8-3.
• A magnet assembly which is permanently
affixed to the flywheel.
• Two electronic capacitive discharge ignition
modules which mount on the engine crankcase.
• A kill switch (or key switch) which grounds the
modules to stop the engine.
• Two spark plugs.
The timing of the spark is controlled directly by the
location of the flywheel magnet group as referenced to
engine top dead center.
Ignition
Modules
Spark
Plug
Magnet
Flywheel