Page 177 - 2019 SHOP MANUAL CRF1000/A/D

dummyheadmmyhead
du

FUEL SYSTEM
FUEL PRESSURE NORMALIZATION
1. Connect the fuel pump unit 3P (Black) connector [1].
Connect the battery negative (–) cable (page 21-5).
2. Turn the ignition switch ON and engine stop switch
"".
The fuel pump will run for about 2 seconds and fuel
pressure will rise.

• Do not start the engine.
3. Turn the ignition switch OFF.
4. Repeat 2 or 3 times, and check that there is no
leakage in the fuel supply system.
[1]
5. Install the fuel tank (page 7-6).

FUEL PRESSURE TEST
Relieve the fuel pressure (page 7-4).
Disconnect the quick connect fitting (fuel pump side) [1]
(page 7-4).
Attach the special tools between the fuel pump joint and
fuel feed hose.
TOOLS: [2]
Fuel pressure gauge [1] 07406-0040004 [3]
Pressure gauge attachment set [2] 070MJ-K260100
Hose attachment, 6 mm/9 mm [3] 07ZAJ-S5A0130
Hose attachment, 8 mm/9 mm [4] 07ZAJ-S7C0100
Attachment joint, 8 mm/9 mm [5] 07ZAJ-S7C0200
Attachment joint, 6 mm/9 mm [6] 07ZAJ-S5A0150 [6]
Temporarily connect the battery negative (–) cable and
fuel pump unit 3P (Black) connector.
Start the engine and let it idle. [5]
Read the fuel pressure.
[4]
Standard:
324 – 367 kPa (3.3 – 3.7 kgf/cm , 47 – 53 psi) Fuel feed
2
hose side
If the fuel pressure is higher than specified, replace the Fuel pump
fuel pump unit. side
If the fuel pressure is lower than specified, inspect the
following:
– Fuel line leaking
– Pinched or clogged fuel hose or fuel tank breather
hose
– Fuel pump unit (page 7-7)
After inspection, relieve the fuel pressure (page 7-4).
Remove the special tools.
Connect the quick connect fitting (page 7-4).

7-5