Fuel Pressure Test; Fuel Flow Inspection - Honda NC700XA Service Manual

dummyhead dummyhead

FUEL PRESSURE TEST

Relieve the fuel pressure and disconnect the quick
connect fitting from the injector (page 7-4).
Attach the fuel pressure gauge, attachments and
manifold.
TOOLS:
Fuel pressure gauge, 0 – 100 psi
[1]
Pressure gauge manifold [2]
Hose attachment, 9 mm/9 mm [3] 07ZAJ-S5A0120
Hose attachment, 8 mm/9 mm [4] 07ZAJ-S7C0100
Attachment joint, 8 mm/9 mm [5] 07ZAJ-S7C0200
Temporarily connect the battery negative (–) cable and
fuel pump 1P (Black) connector.
Turn the ignition switch ON and engine stop switch " ".
Start the engine and let it idle.
Read the fuel pressure.
STANDARD: 343 kPa (3.5 kgf/cm
If the fuel pressure is higher than specified, replace the
fuel pump assembly.
If the fuel pressure is lower than specified, inspect the
following:
– Fuel line leaking
– Pinched or clogged fuel feed hose or fuel tank
breather hose
– Fuel pump unit (page 7-10)
– Clogged fuel filter (page 7-11)
After inspection, relieve the fuel pressure (page 7-4).
Remove the fuel pressure gauge, attachment and
manifold from the injector.
Connect the quick connect fitting (page 7-5).

FUEL FLOW INSPECTION

Relieve the fuel pressure and disconnect the quick
connect fitting from the injector (page 7-4).
Place the end of the hose [1] into an approved gasoline
Wipe off spilled out
container.
gasoline.
Temporarily connect the battery negative (–) cable and
fuel pump 1P (Black) connector.
Turn the ignition switch ON and engine stop switch " ".
Measure the amount of fuel flow.
• The fuel pump operates for 2 seconds. Repeat 5
times so that the total measuring time.
• Return fuel to the fuel tank when the first fuel is
flowed.
Amount of fuel flow:
230 cm
10 seconds at 12 V
If fuel flow is less than specified, inspect the following:
– Fuel pump unit (page 7-10)
– Clogged fuel filter (page 7-11)
Connect the quick connect fitting (page 7-5).
07406-0040004
07ZAJ-S5A0111
2
, 50 psi)
3
(7.8 US oz, 8.1 Imp oz) minimum/
[3] [5]
[2]
FUEL SYSTEM
[1]
[4]
[1]
7-7