Ignition System - Suzuki Madura GV700GL Service Manual

8-3 ELECTRICAL SYSTEM
IGNITION SYSTEM
DESCRIPTION
The fully transistorized ignition system consists of a signal generator, ignitor, ignition coils, and spark
plugs. The signal generator comprises one rotor tip and two pickup coils.
The signal generator coils are mounted on the generator cover. The output of the signal generator goes to
the ignitor unit, where it turns ON and OFF the transistor alternately. As the transistor is turned ON and
OFF, the current passing through the primary windings of the ignition coil is also turned OFF and ON
accordingly, thus it induces the secondary current on the ignition coil secondary windings and produce the
spark between spark plug gaps.
Ignition cut-off circuit is incorporated in the ignitor unit to prevent over-running engine. If engine r/min.
reaches
11,250
r/min., this circuit cuts off the ignition primary current for all spark plugs.
CAUTION:
Engine can run over 11,250 r/min. without load, even if the ignition cut-off circuit is effective, and
it may cause engine damage. Do not run the engine without load over 11,250 r/min. at anytime.
Signal generator
INSPECTION
IGNITION COl LS {Checking with Electro Tester)
• Remove the ignition coils from the frame.
• Using the electro tester, test each ignition coil
for sparking performance. The test connection is
as indicated. Make sure that the three-needle
sparking distance is at least
8
mm.
If no sparking or orange color sparking occures
with this much gap, then it is defective and must
be replaced.
09900 - 281 06
STD Spark
performance
Electro tester
8 mm {0.3 in)
8/W
~
8/~Y
}
To fuel pump relay
To tachometer
8mm
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Sp"k
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