Suzuki DF 25 Service Manual page 54

CDI UNIT
Function
This is the single most important component in the ignition sys-
tem.
Its function is to store and discharge current to each ignition coil
and operate the caution system.
Failure symptoms
• No spark.
• Erratic timing or non- operation of the RPM limiter
and caution lamp when caution system activates.
EMERGENCY STOP SWITCH
Function
When the cord from the plate of the switch is secured to the
operator, the plate will be pulled off if the operator is suddenly
thrown overboard.
Switch will be closed circuit when the plate is removed, power to
all cylinders will cease and the motor will stop instantly.
Failure symptoms
A switch short circuit will not allow the motor to start.
ENGINE CONTROL 3-3