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Buell S1 Lightning User Manual

Buell S1 Lightning
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4-24
REMOVAL
Vent Valve
1. See Figure 4-26. The vent valve fitting (5) is screwed into
the top of the fuel tank.
2. Remove vent hose cable strap. Disconnect hose (6) from
fitting. Remove fitting.
3. Remove check balls (4, 3) from vent valve.
4. Remove fuel filler cap and O-ring. Remove vent valve.
5. If necessary, label overflow vent hose connected to can-
ister and remove from canister fitting.
Canister
1. See Figure 4-25. The canister assembly mounts on a
frame tube along the left side of the motorcycle.
2. Label the three hoses connected to canister. Disconnect
hoses from canister.
3. Depress locking tab at the front end of the canister
mounting bracket. Slide canister towards the front wheel
until it disengages from the bracket and remove.
4. See Figure 4-27. Remove screws, washers and locknuts
(5) to detach mounting plate (2) from clamps (1).
5. Remove countersunk screws and locknuts (4) to sepa-
rate bracket (3) from mounting plate (2).
INSTALLATION
Vent Valve
1
WARNING
Verify that the fuel tank vapor vent hose does not contact
hot exhaust or engine parts. The hose contains flamma-
ble vapors that can be ignited if damaged, thereby result-
ing in personal injury.
1. See Figure 4-26. Screw vent valve (2) into fuel tank.
2. Drop check balls (3, 4) into vent valve.
3. Attach vent valve fitting (5).
4. Install fuel cap and
new
O-ring.
5. Attach overflow vent hose to fitting with a
new
cable
strap.
6. Attach overflow vent hose to bottom fitting on canister if
disconnected.
Figure 4-26. Vapor Vent Valve
Figure 4-27. Carbon Canister Mounting
b0255x4x
1
2
3
4
5
6
7
1. Fuel tank
2. Vent valve
3. Steel check ball
4. Plastic check ball
5. Vent valve fitting
6. Vent hose
7. Cable strap
1. Clamp (2)
2. Mounting plate
3. Canister mounting bracket
4. Countersunk screw and locknut (2)
5. Screw, washer and locknut (2)
1
5754
2
3
5
4

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Buell S1 Lightning Specifications

General IconGeneral
Transmission5-speed
Rear BrakesSingle 230mm disc, single-piston caliper
Compression Ratio10.0:1
IgnitionElectronic
Engine TypeAir-cooled, four-stroke, 45° V-twin
Rear SuspensionShowa monoshock, adjustable preload, compression and rebound damping
Front BrakesSingle 340mm disc, 6-piston caliper
Seat Height775 mm
Bore x Stroke88.8 mm x 96.8 mm
Fuel SystemCarburetor
FrameTubular steel
TiresFront: 120/70 ZR17, Rear: 170/60 ZR17

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