Ignition System - KTM 400-660 LC4 1998-2005 Repair Manual

7-15E
3
s-r
r-s
G
7
1 Battery
2
Main fuse (20 A)
3
Ignition lock
4
Emergency-off switch
5
Auxiliary relay
6
CDI
7
Pulse generator
8
Ignition coil
bl . . . . . . . . .blue
br . . . . . . . . .brown
ge . . . . . . . .yellow
gr . . . . . . . . .grey
g . . . . . . . . .green
o . . . . . . . . .orange
r . . . . . . . . . .red
ra . . . . . . . . .pink
s . . . . . . . . . .black
v . . . . . . . . .violet
w . . . . . . . . .white
to EPC-control-
unit
6
8
4
2
1
M

Ignition system

1
From the battery , battery voltage is delivered via the main fuse
through the activated ignition lock
4 6
switch to the CDI unit
During each revolution of the crankshaft, the pulse generator
supplies a signal to the CDI unit
processed so as to calculate the ignition point.
This ignition pulse is passed on to the ignition coil
is produced).
The ignition system is a digital high voltage capacitor ignition that
receives its power supply from the battery. Therefore, it works only with
an intact battery.
When the battery is discharged below the threshold level, the voltage
can, due to the starting process, drop below the minimum supply
voltage required by the ignition. In this case, turn off the light, and use
the kickstarter.
!
S
AFE AND FAULTLESS OPERATION OF THE DIGITAL IGNITION REQUIRES SPARK PLUG
CONNECTORS AND SPARK PLUGS WITH INTEGRATED RESISTANCE TYPE SUPPRESSORS
3
and the activated emergency OFF
.
6
. In the CDI unit, this signal is
8
(the ignition spark
CAUTION
2
,
7
!
.