Suzuki GA413 Service Manual page 871

TABLE B-3 FUEL PRESSURE CHECK
INSPECTION
STEP
1 Check Fuel Pressure (Refer to Section 6E for details).
1) Release fuel pressure from fuel feed line.
2) Install fuel pressure gauge.
3) Check fuel pressure by repeating ignition switch
ON and OFF. See Fig. 1.
Is fuel pressure then 270 – 310 kPa (2.7 – 3.1 kg/cm
38.4 – 44.0 psi)?
2 Is 200 kPa (2.0 kg/cm
pressure retained for 1 minute after fuel pump is
stopped at Step 1?
3 Is there fuel leakage from fuel feed line hose, pipe or
their joint?
4 Was fuel pressure higher than spec. in Step 1?
Fig. 1 for Step 1
1. Fuel pressure gauge & 3way joint
ACTION
2
, 28.4 psi) or higher fuel
ENGINE GENERAL INFORMATION AND DIAGNOSIS 6-95
YES
Go to Step 2.
2
,
Normal fuel pressure.
Fuel leakage from
hose, pipe or joint.
Faulty fuel pressure
regulator.
Faulty fuel pressure
control valve.
1. Injector
2. Delivery pipe
3. Fuel pump
4. Fuel filter
5. Fuel pump
(A): Fuel pressure gauge
(B): Hose
(C): Attachment
NO
Go to Step 4.
Go to Step 3.
Faulty fuel pressure
regulator.
Clogged fuel filter,
Restricted fuel feed
hose or pipe, Faulty
fuel pump or Fuel
leakage from hose
connection in fuel tank.