Buell 2006LIGHTNING MODELS, Service Manual, Page: 457 / 638

2006 Buell Lightning: Fuel System 4-115
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FUEL TANK VENT VALVE 4.40
GENERAL
The vent valve opens to allow gas vapor to escape the fuel
tank and either vent to the atmosphere or to the charcoal can-
ister on California Models (EVAP-equipped) and closes to
prevent gasoline from leaking out of the fuel tank if the vehicle
is tipped at an extreme angle.
NOTE
The fuel tank must be drained to perform this service.
REMOVAL
1. Remove seat. See 2.43 SEAT .
1
WARNING
1
WARNING
To prevent accidental vehicle start-up, which could
cause death or serious injury, disconnect negative (-)
battery cable before proceeding. (00048a)
2. Disconnect negative battery cable.
3. Remove intake cover assembly. See 2.37 INTAKE
COVER ASSEMBLY.
4. Drain fuel tank. See DRAINING FUEL TANK under 4.39
FUEL PUMP .
5. Remove fuel tank vent line from vent valve.
6. See Figure 4-102. Remove vent valve fasteners (5).
7. Remove bracket (4), vent valve (3) and o-ring (2) from
fuel tank/frame (1).
INSTALLATION
1. See Figure 4-102. Install new vent valve o-ring (2).
2. Install vent valve (3) into fuel tank/frame. Vent valve noz-
zle should be at approximately the 7:00 position.
3. Install bracket over vent valve. Slot in bracket should line
up with notch in valve.
4. Loosely install vent valve fasteners (5).
5. Tighten fasteners to 39-41 in-lbs (4.4-4.6 Nm).
6. Connect fuel tank vent line to vent valve.
7. Install intake cover assembly. See 2.37 INTAKE COVER
ASSEMBLY.
8. Connect negative battery cable. Tighten battery terminal
hardware to 72-96 in-lbs (8-11 Nm).
1
WARNING
1
WARNING
After installing seat, pull upward on front of seat to be
sure it is in locked position. While riding, a loose seat can
shift causing loss of control, which could result in death
or serious injury. (00070a)
9. Install seat. See 2.43 SEAT.
Figure 4-102. Fuel Tank Vent Valve
b1000x4x
1. Fuel tank/frame
2. O-ring
3. Vent valve
4. Bracket
5. Fastener (2)
5
4
3
2
1