ENGINE CONTROL SYSTEM 3-23
Automatically reduced to approx. 3000 r/min by intermittent fuel injection and ignition
signals.
“REV-LIMIT” lamp lights continuously.
No buzzer sounds.
CAUTION SYSTEM
The following four caution systems alert the operator when an
abnormality occurs on the engine.
• OVER-REVOLUTION CAUTION
• LOW OIL PRESSURE CAUTION
• OVERHEAT CAUTION
• LOW BATTERY VOLTAGE CAUTION
CAUTION
TYPE
CAUTION
LAMP
CAUTION
BUZZER
OVER-REV
LIMITER
(3000 r/min)
Over-revolution
Yes
1
No
Yes
Low oil pressure
Yes
2
(
1
)
Yes
Yes
Overheat
Yes
3
(
1
)
Yes
Yes
Yes
4
Yes
No
Low battery voltage
1
“REV LIMIT” lamp
2
“OIL” lamp
3
“TEMP” lamp
4
“CHECK ENGINE” lamp
MONITOR-TACHOMETER
OVER-REVOLUTION CAUTION SYSTEM
CONDITION:
When the engine speed exceeds 6500 r/min, the ECM initiates intermittent fuel injection and ignition signals
to provide a maximum engine speed of 6500 r/min (Over-revolution limiter).
ACTION:
RESET:
Close the throttle to reduce the engine speed below approx. 3000 r/min for 4 seconds.
Engine speed
Caution lamp
Caution buzzer
NOTE:
On the tiller handle model, alerts will be signaled by a sound sequence only from the buzzer contained in the
tiller handle.
