Kohler Command CH20 Service Manual page 41

Digital Spark Advance Ignition (DSAI) System
This system uses a digital microprocessor which is located in ignition modules. Ignition timing varies depending upon
engine speed with this system. There are 2 inductive-style ignition modules that control ignition timing based on
engine RPM. A typical DSAI application consists of:
● 1 magnet assembly, which is permanently affi xed to fl ywheel.
● 2 inductive, 12-volt ignition modules, which mount on engine crankcase.
● 1 12-volt battery, which supplies current to ignition modules.
● 1 kill switch (or key switch) which grounds spark advance module to stop engine.
● 2 spark plugs.
A Oil Pressure Switch
E White
I Red (B+)
M DSAI Module
Q Violet (B+ Lead)
U Fuse
Accessory Terminal
Y
(+)
AC Carburetor
AG Black (Ground)
AK Magneto
AO Starter
AS Battery Positive
24 690 30 Rev. G
Green (Oil Sentry
B
™
Pulse Signal Lead)
F Red
J White (DSAI Kill)
White (AC Charging
N
Leads)
R Starter Assembly
V Starter Solenoid Tang
Z Yellow
AD Solenoid Lead
Oil Sentry Panel
AH
™
Light/Remote Light
AL Key Switch
Key Switch Ground
AP
(Black)
AT Battery Negative
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Black (Ground) Intake
C Manifold Mounting
Screw
G Spark Plug(s)
K Module Screw
Rectifi er-Regulator
O
Connector
Oil Sentry Pulse
S
™
Signal
W Starter Solenoid Stud
AA Red (DSAI Power)
AE Ground
AI Oil Sentry Light
™
AM Accessory
AQ Rectifi er
Customer Supplied
AU
Relay Cranking
Electrical System
D Black
H Black (Ground)
Flywheel Stator
L
Assembly
P Rectifi er-Regulator
Alternate Ignition
T
Pulse Signal (–)
X Blue
AB White (DSAI Kill)
Intake Manifold
AF
Screw
AJ Connector
AN Battery
AR Blue/Red
AV Relay Stud
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