Suzuki GA413, Service Manual

Page: 472 / 1246

FUEL DELIVERY SYSTEM
FUEL PRESSURE INSPECTION
1) Relieve fuel pressure in fuel feed line. Refer to “Fuel Pressure
Relief Procedure” in Section 6.
2) Disconnect fuel feed hose from fuel delivery pipe.
CAUTION:
A small amount of fuel may be released when hose is
disconnected. Place container under hose or cover
pipe with a shop cloth so that released fuel is caught
in container or absorbed in cloth. Place that cloth in
an approved container.
3) Connect fuel pressure gauge to fuel feed line.
Special Tool
(A): 09912-58441 (Fuel pressure gauge)
(B): 09912-58431 (Pressure hose)
(C): 09912-58490 (3way joint and hose)
4) Turn ignition switch ON position to operate fuel pump and after
3 seconds turn it OFF. Repeat this 3 or 4 times and then check
fuel pressure.
NOTE:
Check that battery voltage is above 11V.
5) Start engine and measure fuel pressure at idling.
6) Stop engine, wait for 1 minute and then measure fuel pressure.
If measured pressure doesn’t satisfy specification, go to “B-3
Fuel Pressure Check” in this section.
At specified
idle speed
210 – 260 kPa
2.1 – 2.6 kg / cm
2
29.8 – 37.0 psi
With 1 min. after
engine (fuel pump)
stop (Pressure re-
duces as time passes)
over 200 kPa
2.0 kg / cm
2
28.4 psi
CONDITION FUEL PRESSURE
With fuel pump
operating and
engine stopped
270 – 310 kPa
2.7 – 3.1 kg / cm
2
38.4 – 44.0 psi
7) 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 the follow-
ing procedures.
Place fuel container under joint.
Cover joint with rag and loosen joint nut slowly to
release fuel pressure gradually.
8) Install fuel feed hose and clamp it securely.
9) Turn ignition switch ON position to operate fuel pump and after
3 seconds turn it OFF. Repeat this 3 or 4 times and then check
for fuel leaks.
6E-62 ENGINE AND EMISSION CONTROL SYSTEM