2-1
Technical features and description
Engine control system
Outline
The F4B, F5A, F6C adopt the CDI ignition system consisting of the CDI unit and a permanent mag-
net of the flywheel magnet.
The CDI unit has a compact design with an integrated ignition coil.
There are two types of ignition control systems. One is ignition timing control at normal operation,
and the other one is ignition cut-off control during engine cranking and when over-revving.
a CDI unit
b Flywheel magnet
a Permanent magnet
a
a
b