Suzuki GS850G Service Manual page 414

lGNlTlON SYSTEM
@
On the Model
d5810GZ,
t k
timing advance characteristics of the ignition timing have been changed from
the hitherto-employed mechanical timing advance system incorporating an advance governor to an elec-
tronic timing advance
system.
The introduction of this new electronic timing advance
system
has kept the
change in the ignition timing due to time lapse at
a
minimum level and also has improved the timing
a
advance performance during high-speed operations.
Signal generator
When the signal rotor is rotated in
the
system block diagram
above, the signal "A" is generated in the
pick-up coil. The thus-generated signal will be converted to
the
signal waveform "'B" at the inside of the
ignitor unit. Based on this
"8"
waveform, control is made by means of the advancing control circuit and
the closing angle control circuit. As a result, the timing advance takes place,
as
shown in Fig. '"C."
Slowspeed
k - - l
revolution
I
Advanced angle
8 '
Medium-speed
revolution
I-
-
-
1
Advanced angle
e0
High-speed
revolution
1