Suzuki RGV250L 1990 User Manual

6-5 ELECTRICAL SYSTEM
IGNITION SYSTEM
Signal
generator
Neutral
indicator
light
·0!:"'Y
DESCRIPTION
L
Neutral
;nd;cato, I
,;ght ..,;'ch •
COl unit
IBIY
Ignition coil
Spark plug
G
B/W
r;d'stand
switch
,
The RGV250 engine is equipped with a new type ignition system. This new system minimizes timing
fluctuations.
It has an "ignition timing control circuit" which accurately controls ignition timing depend-
ing on the engine r/min.
OPERATION
There is a DC-DC converter in the COl unit, which steps up the battery voltage to a higher voltage and
charges the capacitor (C). An
SCR connected to the capacitor becomes conductive (turns on) when a
forward voltage signal
is sent to its gate allowing the electric energy stored in the capacitor (C) to discharge
instantly
to the ignition primary coil. This then causes a high voltage to be induced in the secondary coil
and a
hot spark jumps across the spark plug gap. Therefore, the spark in the spark plug occurs when the
SCR is turned on. In other words, the SCR's being turned on is the ignition timing (or spark timing). This
ignition
timing is controlled by the control circuit which processes the signal generator pulses to form an
SCR gate signal. The signal is then sent to the SCR just when the crankshaft has reached the best ignition
timing for the current engine revolutions.

Suzuki RGV250L 1990 Specifications

General

Brand	Suzuki
Model	RGV250L 1990
Category	Motorcycle
Language	English