Fuel Pressure Test - Buell 2004 XB9S Service Manual

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FUEL PRESSURE TEST

INSPECTION
PART NO.
B-45522 Fuel pressure gauge adapter
HD-41182 Fuel pressure gauge
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WARNING WARNING
The gasoline in the fuel supply line downstream of the
fuel pump is under high pressure (49 psi [338 kPa]). To
avoid an uncontrolled discharge or spray of gasoline,
always purge the system of high pressure gas before
attaching fuel pressure gauge. Gasoline is extremely
flammable and highly explosive. Inadequate safety pre-
cautions could result in death or serious injury.
1. Remove airbox. See 4.44
2. Purge the fuel supply line of high pressure gasoline.
a. See Figure 4-22. Disconnect the 4-place fuel pump
connector [86]. The connector is located inside the
left rear portion of the fuel tank/frame.
b. With the motorcycle in neutral, start the engine and
allow vehicle to run.
c. When the engine stalls, press the starter button for 3
seconds to remove any remaining fuel from fuel line.
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WARNING WARNING
A small amount of gasoline will drain from the valve
when the gauge is installed. Thoroughly wipe up any spilt
fuel immediately. Dispose of rags in a suitable manner.
Gasoline is extremely flammable and highly explosive.
Inadequate safety precautions could result in death or
serious injury.
3. See Figure 4-23. Depress button (2) of fuel line connec-
tor and disconnect the fuel line (3) from throttle body inlet
(1).
4. See Figure 4-24. Attach FUEL PRESSURE GAUGE
ADAPTER (Part No. B-45522) (2) to throttle body inlet
(1).
5. Connect the fuel line (3) to fuel pressure gauge adapter.
NOTE
See Figure 4-25. Verify that fuel valve (2) and air bleed pet-
cock (5) on the gauge are closed.
6. Attach FUEL PRESSURE GAUGE (Part No. HD-41182)
(4) to fuel pressure gauge adapter (1).
4-32 2004 Buell Lightning: Fuel System
SPECIALTY TOOL
AIRBOX.
8774
Figure 4-22. Fuel Pump Connector [86] (swingarm
removed for illustration)
b1047x4x
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1. Throttle body inlet
2. Button
3. Fuel line
Figure 4-23. Fuel Line
4.13
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3