Suzuki GA413 Service Manual page 911

CONDITION FUEL PRESSURE
With fuel pump
operating and engine 2.7 – 3.1 kg/cm
stopped
At specified idle
2.1 – 2.6 kg/cm
speed
With 1 min. after
engine (fuel pump)
stop (Pressure re-
duces as time passes)
FUEL DELIVERY SYSTEM
FUEL PRESSURE INSPECTION
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.
1) Relieve fuel pressure in fuel feed line referring to "Fuel Pressure
Relief Procedure" in Section 6.
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.
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
270 – 310 kPa
2
pressure.
38.4 – 44.0 psi
6) Start engine and warm it up to normal operating temperature.
210 – 260 kPa
7) Measure fuel pressure at idling.
2
29.8 – 37.0 psi
If measured pressure doesn't satisfy specification, refer to
over 250 kPa
"Diagnostic Flow Table B-3" in "Engine Diagnosis" section and
2
2.5 kg/cm
check each possibly defective part. Replace if found defective.
35.6 psi
8) After checking fuel pressure, remove fuel pressure gauge.
ENGINE AND EMISSION CONTROL SYSTEM 6E-19
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.
CAUTION:
As fuel feed line is still under high fuel pressure, make
sure to release fuel pressure according to following
procedures.
D Place fuel container under joint.
D Cover joint with rag and loosen joint nut slowly to
release fuel pressure gradually.