Suzuki DF 50 Service Manual

3-23 ENGINE CONTROL SYSTEM
LOW OIL PRESSURE CAUTION SYSTEM
CONDITION :
Immediate activation of system when the oil pressure switch turns “ON” due to an engine oil pressure drop
below 100 kPa ( 1.0 kg / cm
2
, 14 psi.).
ACTION :
Engine speed Automatically reduced to approx. 3000 r/min by intermittent fuel injection signal if the
system is activated at 3000 r/min or higher.
Caution lamp “ OIL ” lamp lights continuously.
“ REV-LIMIT ” lamp lights continuously during engine speed rev-limiter activation.
Caution buzzer Sounds in a series of long (1.5 sec.) beeps.
RESET :
Stop engine and check engine oil level. Refill engine oil to the correct level if below the low oil mark.
If the engine oil level is correct, the following causes may be considered:
• Improper oil viscosity.
• Malfunctioning oil pressure switch.
• Clogged oil strainer or oil filter.
• Worn oil pump relief valve.
• Oil leakage from the oil passage.
• Excessive wear / damage of oil pump
NOTE:
The low oil pressure caution system is reset when the oil pressure is restored to over 1.0kg/cm
2
with approx.
3000 r/min or less engine speed operation.
However, the engine must be stopped and checked immediately once the system is activated.

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.)