2-3
Technical features and description
Ignition cut-off control
There are two types of ignition cut-off control. One is a system to cut off the ignition during engine
cranking without outputting ignition signals a from ignition control circuit b when the engine speed
is 150 r/min or lower. The other one is a system to stop ignition to prevent damage to the engine
when over-revving. While this control system is activated, the ignition control circuit b keeps output-
ting ignition signals a without charging the capacitor c.
A Ignition control during engine cranking
B Engine speed control
Ignition control during engine cranking Engine speed control
150 r/min or less 5900 r/min or more
b
a
c
A
b
c
B
a
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