Suzuki DF 50 Service Manual

5-5 FUEL SYSTEM
B
A small amount of fuel may be released when the fuel
feed hose is disconnected.
Place container under the fuel feed hose or 3-way pipe
with a shop cloth so that released fuel is caught in con-
tainer or absorbed in cloth. Place fuel soaked cloth in
an approved container.
3. Squeeze fuel primer bulb until you feel resistance.
Turn ignition switch “ON” for 3 seconds (to operate fuel
pump), then turn it “OFF”.
Repeat this (“ON” and “OFF”) procedure 3 or 4 times to pres-
surize the fuel system and then check fuel pressure.
4. Measure fuel pressure in line at cranking or idle speed op-
eration.
Fuel pressure : Approx. 235 kPa
(2.4 kg/cm
2
, 34.1 psi.)
5. Stop engine and wait 5 minutes.
z
OFF
ON
FUEL PRESSURE INSPECTION
1. Relieve fuel pressure in fuel feed line. (See page 5-2)
2. Connect special tools (pressure gauge, pressure hose &
pressure joint) between fuel feed hose and 3-way joint pipe
as shown in figure.
Clamp hose securely to ensure no leaks occur during check-
ing.
09912-58441 : Pressure gauge –
aa
aa
a
09912-58431 : Fuel pressure hose –
bb
bb
b
09912-58490 : Fuel pressure joint –
cc
cc
c
1. High pressure fuel filter
2. Fuel delivery gallery
3. 3-way pipe
1
2
3
c
a
b
B
As fuel feed line is still under high fuel pressure, make
sure to release fuel pressure according to following
procedures.
• Place container under joint to catch fuel.
• Cover joint with rag and loosen joint nut slowly to
gradually release fuel pressure.
1
1 Joint nut

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.)