4-112 2003 Buell XB9S: Fuel System
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THROTTLE BODY 4.41
GENERAL
See Figure 4-100. The throttle body consists of the following
components:
● Fuel supply fitting.
● Idle speed adjustment screw.
● Cable bracket.
● Throttle position sensor.
● Throttle lever.
REMOVAL
1WARNING1WARNING
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
servicing throttle body. Gasoline is extremely flammable
and highly explosive. Inadequate safety precautions
could result in death or serious injury.
1. Purge the fuel supply line of high pressure gasoline.
a. See Figure 4-99. Disconnect the 4-place fuel pump
connector [86]. Connector is located on the left side,
above the fuel pump.
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.
d. Reconnect fuel pump connector.
2. Label and detach throttle cables. See 2.23 THROTTLE
CONTROL.
3. See Figure 4-101. On California models, pull EVAP hose
from fitting (1).
4. Rotate engine for service. See 3.3 ENGINE ROTATION
FOR SERVICE.
Figure 4-99. Fuel Pump connector [86] (swingarm
removed for illustration)
8774
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