Suzuki DF 50 Service Manual

5-12FUEL SYSTEM
FUEL INJECTOR
INSPECTION
1. Using sound scope or equivelent, check operating sound of
fuel injector when engine is running or cranking.
The injector operating sound cycle should vary according
to engine speed.
If no sound or an unusual sound is heard, check injector
circuit (wire or connector) or injector.
2. Disconnect lead wire connector from fuel injector.
3. Connect digital tester between terminals of injector and
check resistance.
09930-99320 : Digital tester
Tester range :
WW
WW
W (Resistance)
Fuel injector resistance : 11.0 – 16.5
WW
WW
W
If out of specification, replace fuel injector.
4. Connect lead wire connector to fuel injector securely.
z
t
REMOVAL
1. Relieve fuel pressure according to procedure described on
page 5-2.
2. Disconnect lead wire connectors from each injector.
3. Remove the screw securing the fuel injector stopper.
4. Remove fuel injector stopper and fuel injector.
B
A small amount of fuel may be released when the fuel
injector is removed from intake manifold.
Place a shop cloth under fuel injector before removal
to absorb any fuel released.
Dispose of fuel soaked cloth in appropriate container.

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.)