Specifications

12
Command Twin
Improved Breather Hoses
Recent reports of cracked or deteriorating breather hoses on
Command, Aegis, and Courage engines have prompted a
material change. A previous material change in 2004 has been
found to be inadequate in some applications for long term
reliability.
New hoses with improved ozone protection have been
developed and carry new part numbers. They also have the
part number printed in white for easy identification. Please
refer to the chart found on Service Bulletin 279 in Section 10
for the cross reference to the new breather hose part numbers.
All engines should be routinely inspected for deteriorating or
cracking breather hoses. Replace any deteriorated or cracking
hoses with a new breather hose. Only file a warranty claim if
the engine is within the warranty period.
Cracking or
Deterioration
Cracks in Breather Hoses
DSAI System
Digital Spark Advance Ignition (DSAI) has been developed to
replace the current DSAM and fixed timing CDI systems.
Features include:
• Designed to meet or exceed Kohler specifications
• Fewer system parts (two vs. three) than DSAM
• 12-Volt inductive microprocessor controlled ignition
modules (5-16 VDC operating voltage)
• Timing curves for specific engines (C740 & C750) and fuel
type (gasoline & LP/NG)
• Output at lower engine speeds (100 RPM vs. 200 RPM)
• Increased spark duration and spark energy over current
CDI/DSAM (improved cold starting capability)
• Improved combustion due to longer spark duration
• No air gap adjustment (mount and go)
• Fits current Kohler V-twin engine mounting
• Works with current C740/C750 production flywheel &
magnets
• Low voltage signal (4 volt square wave) at kill tab for
OEM use (hour meter, tachometer, safety control) as
compared to DSAM 300 volt pulse
• Average DSAI current draw compared to DSAM current
draw of 0.085 amps (all cases):
• 1.5 amps starting
• 1 amp operating
• 5 milliamps 2/engine OFF (key switch ON)
• Battery ignition system that offers a 12-volt shut down
and/or ground to kill
• Sleep mode
• If key is left on, ignition switches to sleep mode and
only draws 5 milliamps.
DSAI Module