FUEL SYSTEM 5-9
Fuel pressure regulator
Check the fuel pressure regulator operation.
$ 09940-44121 : Air pressure gauge – 1
09940-44130 : Attachment – 2
09912-58490 : Hose – 3
: Hand air pump – 4
1. Connect the special tools to the inlet side of the regulator as
shown in the figure.
2. Pump air into the regulator using a hand air pump 4 until air
is released through the outlet side.
3. Read pressure on the gauge 1 when air is released.
Regulator operating pressure:
240 – 270 kPa (2.4 – 2.7 kg/cm
2
, 34.1 – 38.4 psi)
If the result is out of the specification, replace the regulator.
REASSEMBLY
Assembly is reverse order of disassembly with the special at-
tention to the following steps.
High pressure fuel pump
Connect the pump lead wire connector, then install the grommet
1 and fuel pump 2.
NOTE:
Apply fuel to the grommet before installing.
Float / Float pin
Install the float and the float pin.
NOTE:
After assembling, check for smooth and free float movement.
Checking float height
Measure the float height.
$ 09900-20101: Vernier calipers
Float height H: 43 ± 1 mm
NOTE:
Make sure that the float weight is not applied to the needle
valve.
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