Kohler Command CV730 User Manual download pdf (Page 122)

8.6

Section 8

Electrical System and Components

B. Capacitive Discharge with Electronic Spark

Advance (SMART-SPARK

™

)

SMART-SPARK

™

equipped engines utilize an

electronic capacitive discharge ignition system with

electronic spark advance. A typical application (Figure

8-6) consists of the following components:

• A magnet assembly which is permanently affixed

to the flywheel.

• Two electronic capacitive discharge ignition

modules which mount on the engine crankcase

(Figure 8-6).

• A spark advance module which mounts to the

engine shrouding (Figure 8-7).

• A 12 volt battery which supplies current to the

spark advance module.

• A kill switch (or key switch) which grounds the

spark advance module to stop the engine.

• Two spark plugs.

Figure 8-7. Block Diagram - Spark Advance Module.

Figure 8-6. Capacitive Discharge Ignition System

with Spark Advance.

The timing of the spark is controlled by the location of

the flywheel magnet group as referenced to engine top

dead center and the delay created by the spark

advance module.

Power

Source

Pulse

Generator

Reset

Circuit

B+ (12 VDC)

Red

Yellow

Semi-Conductor

Switch

Comparator

Delay

Circuit

Charge

Pump

Conditioning

Circuit

V+ (7.2V)

Brown

From

Input

Coil

Green

or Black

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Kohler Command CV730 User Manual Page 122

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