10) Ignition System:
10.1)
General:
The
engine
is
equipped
wirh
a breakerless 12V 170W
DUCAII capacito!-discharge
dual
ignition. It consists of a flywheel magneto
generato!,
2 double ignition
coils widr integrated
control-circuir and 2
external triggers
(pick-up).
The 12-pole flywheel
genentor
is an outerrotor type
with
12
integated
permanent
magnetos.
The
stator
is
equipped
with
12 coils.
8
of
them are used for feeding
auxiliary equipment
and
4
are used for the dual ignition. The
grey
cable is foreseen t'or connection
of a tachomerer.
10.2) Function
of the
ignition
unit:
Twochargingcoilpairs fifted
on the
g€neratorstatorand
independautfromcach
other feed
one
eachignition
circuit.
The
energy
suppliedis stored in the ignition capacitor.
At
the Eoment
of
ignition the external niggers
supply an impulse to
the confolcircuirs
and the ignirion
conden-
sors
arc
discharged
via
the
primary
winding
of rhe ignition
coil. The secondary winding
sup-
plies
tle high vohage for the ignition
spark.
ATTENTION: When flying
balb
ignirion
sysrems musr b€ swirched
ON!
10.3) Checking of ignition unit:
Before every staJt the function
of the rwo iglition
systems has to
be checked. For
checking
the
ignition
unit rhe engine musrbe
operated at 3000 to
3500
ymin
and alrernately
ignirion
system
1 and 2 must
be switched off. The RPM-dop
must nor exceed max.
300 l/min.
I
ATTENTION: With enginerunning
the triggercable
(red)
musttrot
b€ disconnecredfiom
rhe
electronic box.
This could desroy
the electronic
box.
I
gnitionsvitclres
circuit
I
^A
shorting cable
10
(black/yel.)
q
J
circuit
2
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