Suzuki GA413, Service Manual

Page: 911 / 1246

FUEL DELIVERY SYSTEM
FUEL PRESSURE INSPECTION
1) Relieve fuel pressure in fuel feed line referring to “Fuel Pressure
Relief Procedure” in Section 6.
WARNING:
Be sure to perform work in a well-ventilated area and
away from any open flames, or there is a risk of a fire
breaking out.
2) Disconnect fuel feed hose from fuel delivery pipe.
3) Connect special tools and hose between fuel delivery pipe and
fuel feed hose as shown in figure, and clamp hoses securely to
ensure no leaks occur during checking.
Special Tool
(A): 09912-58441
(B): 09912-58431
(C): 09912-58490
4) Check that battery voltage is above 11 V.
CAUTION:
A small amount of fuel may be released when fuel
hose is disconnected. Place container under the joint
with a shop cloth so that released fuel is caught in
container or absorbed in cloth. Place that cloth in an
approved container.
270 – 310 kPa
2.7 – 3.1 kg/cm
2
38.4 – 44.0 psi
At specified idle
speed
With 1 min. after
engine (fuel pump)
stop (Pressure re-
duces as time passes)
over 250 kPa
2.5 kg/cm
2
35.6 psi
CONDITION FUEL PRESSURE
With fuel pump
operating and engine
stopped
5) Turn ignition switch ON to operate fuel pump and after 2 se-
conds turn it OFF. Repeat this 3 or 4 times and then check fuel
pressure.
6) Start engine and warm it up to normal operating temperature.
7) Measure fuel pressure at idling.
If measured pressure doesn’t satisfy specification, refer to
“Diagnostic Flow Table B-3” in “Engine Diagnosis” section and
check each possibly defective part. Replace if found defective.
210 – 260 kPa
2.1 – 2.6 kg/cm
2
29.8 – 37.0 psi
8) After checking fuel pressure, remove fuel pressure gauge.
CAUTION:
As fuel feed line is still under high fuel pressure, make
sure to release fuel pressure according to following
procedures.
Place fuel container under joint.
Cover joint with rag and loosen joint nut slowly to
release fuel pressure gradually.
ENGINE AND EMISSION CONTROL SYSTEM 6E-19
GA413
supple