IGNITION
The standard ignition system for engines
WO1-115,
150
and
210
is a magneto ignition system called
T.I.C. (Transistor Ignition Circuit). T.I.C. consists
of
an
ignition coil with a built-in transistor mounted on
the flywheel.
For initial excitation, a Solid State Ignition is an avail-
able option for these engines.
SYSTEM
OPERATION
Figures
4-1
and
4-2
Revolution
of
the flywheel generates electricity on
the primary side
of
the ignition coil, and the electric
SYSTEM
current
(A)
runs.
(A)
makes the power transistor
"ON"
and the electric current
(B)
passes.
The flywheel goes round further, and at the time
of
ignition the electric current (C) runs, then the electric
current
(D)
runs
to
the signal transistor, by which the
electric current
(B),
passing through the power tran-
sistor, is abruptly cut; and as a result, the high
voltage electricity
is
generated on the secondary
side
of
the ignition coil and it sparks at the plug.
Figure
4-2
illustrates the engine wiring diagram.
-
RESISTOR
f
IGNITION
COIL
Figure
4-1.
STOP
BUlTON
IGNITION COIL CONNECTOR
-r
SPARK
PLUG BLACK
mrr
(OPTION)
EXCITER
COIL
(
I
I
l""1
I
i
FLYWHEEL
Figure
4-2.
4-
1
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