Caution Systems; Over Revolution Caution System - Suzuki DF 25 Service Manual

3-12 ENGINE CONTROL

CAUTION SYSTEMS

The following three caution systems alert the operator when an
abnormality occurs on the engine.
• OVER-REVOLUTION CAUTION
• LOW OIL PRESSURE CAUTION
• OVER HEAT CAUTION
CAUTION CAUTION
TYPE LAMP
Over-revolution
Low oil pressure
Overheat
Lamp check / Buzzer check
Two (2) seconds after starting engine:
• Caution lamp turns on.
• Caution buzzer sounds. (Remote control models)
OVER- REVOLUTION CAUTION SYSTEM
The over-revolution caution control function activates when the engine speed detected by the CDI exceeds
the preset maximum engine speed value.
Maximum engine speed
DF25 : 6300 r/min.
DF30 : 6500 r/min.
The control system operates as follows.
• If the engine is operated at a speed above the over-revolution systems preset maximum value for more than
10 seconds , the engine speed will be automatically controlled by ignition interruption and lowered to
approximately 3000 r/min.
• If the operator decreases engine speed to less than the over-revolution systems maximum preset value
within 10 seconds , the over-revolution caution control will be cancelled.
• During operation of the over-revolution caution control, the caution lamp is on.
To cancel the over-revolution caution control system when activated by excessive engine speed only,
close throttle to reduce engine speed below approx.2500 r/ min for one second.
CAUTION
BUZZER
(R / T model only)
Yes No
Yes Yes
Yes Yes
OVER-REV
LIMITER
(3000 r/min)
Yes
Yes
Yes
CAUTION lamp