Suzuki DF 50 Service Manual

ENGINE CONTROL SYSTEM 3-22
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 Ye s NoLow battery voltage
1 “REV LIMIT” lamp
2 “OIL” lamp
3 “TEMP” lamp
4 “CHECK ENGINE” lamp
MONITOR-TACHOMETER
1
23
4
OVER-REVOLUTION CAUTION SYSTEM
CONDITION:
When the engine speed exceeds 6500 r/min(DF40) or 7000 r/min (DF50), the ECM initiates an intermittent
fuel injection signal to provide a 6500 r/min or 7000 r/min maximum. (Over-revolution limiter)
ACTION:
RESET :
Close throttle to reduce engine speed below approx. 3000 r/min for one second.
Engine speed Automatically reduced to approx. 3000 r/min by intermittent fuel injection signal.
Caution lamp “REV-LIMIT” lamp lights continuously.
Caution buzzer No buzzer sounds.

Suzuki DF 50 Specifications

General

Engine Type	4-Stroke
Cylinders	3
Displacement	941 cc
Starting System	Electric
Steering	Remote
Engine Type Detail	DOHC 12-Valve
Maximum Output	50 HP
Ignition System	Digital CDI
Alternator	12V 19A
Gear Ratio	2.27:1
Exhaust	Through Prop Hub Exhaust
Trim Method	Power Trim and Tilt
Max Power	50 HP
Alternator Output	12V 19A
Fuel Delivery System	Sequential Multi Point Electronic Fuel Injection
Full Throttle Operating Range	5, 300 - 6, 300 rpm
Engine Oil Capacity	2.7 L
Full Throttle RPM Range	5300 - 6300 RPM
Oil Capacity	2.7 L
Bore x Stroke	72.5 x 76.0 mm (2.85 x 2.99 in.)