Buell S1 Lightning User Manual

4-20
FUEL TANK
GENERAL
1
WARNING
Verify that the fuel tank vent hose does not contact hot
exhaust or engine parts. The hose contains flammable
vapors that can be ignited if damaged, thereby resulting
in personal injury.
See Figure 4-21. The fuel tank is vented through a vent valve
assembly within the tank. A vent hose connects to the vent
valve fitting at the top of the fuel tank. The vent hose is then
cable strapped to the left side of the vehicle frame.
REMOVAL
1
WARNING
Gasoline can be extremely flammable and highly explo-
sive. Do not smoke or allow open flame or sparks when
refueling or servicing the fuel system. Inadequate safety
precautions may result in personal injury.
1. Turn fuel supply valve OFF.
1
WARNING
A small amount of gasoline may drain from the fuel hose
when disconnected from the carburetor. Thoroughly wipe
up any spilt fuel immediately and dispose of rags in a
suitable manner. Gasoline can be extremely flammable
and highly explosive. Inadequate safety precautions may
result in personal injury.
2. Remove fuel hose and hose clamp from fuel supply
valve.
NOTE
Fuel tank can be removed from motorcycle without being
drained. Drain tank only when necessary.
3. Drain fuel from tank.
a. Attach an additional length of hose to fuel supply
valve. Place free end of drain hose into a proper,
clean container of adequate size.
b. Turn supply valve to reserve (RES). Drain gasoline
from tank into container. Remove temporary drain
hose.
4. See Figure 4-21. Remove cable strap (12) holding vent
hose (11) to vent valve fitting (10). Disconnect vent hose
from vent valve fitting.
5. Remove seat.
6. Remove fuel tank screw (1) and washer (2).
1
CAUTION
Use caution when removing fuel tank. If tank should con-
tact other chassis parts, tank finish may be damaged.
7. Lift rear of tank from frame and remove.
Figure 4-21. Fuel Tank
b0254x4x
1
2
3
4
5
10
6
12
11
8
9
7
1. Screw
2. Washer
3. Fuel cap
4. O-ring
5. Screw (8)
6. Fuel cap boot
7. Fuel tank
8. Vent valve
9. Fuel cap flange
10. Vent valve fitting
11. Vent hose
12. Cable strap

Buell S1 Lightning Specifications

General

Transmission	5-speed
Rear Brakes	Single 230mm disc, single-piston caliper
Compression Ratio	10.0:1
Ignition	Electronic
Engine Type	Air-cooled, four-stroke, 45° V-twin
Rear Suspension	Showa monoshock, adjustable preload, compression and rebound damping
Front Brakes	Single 340mm disc, 6-piston caliper
Seat Height	775 mm
Bore x Stroke	88.8 mm x 96.8 mm
Fuel System	Carburetor
Frame	Tubular steel
Tires	Front: 120/70 ZR17, Rear: 170/60 ZR17