Buell S1 Lightning User Manual

1-38
Handling Irregularities
1. Tires improperly inflated. Check TIRES AND WHEELS
on page 1-18. Do not overinflate.
2. Loose wheel axle nuts. Tighten front nut to 48-53 ft-lbs
(65.1-71.9 Nm). Tighten rear nut to 66-73 ft-lbs (90-99
Nm).
3. Excessive wheel hub bearing play.
4. Rear wheel out of alignment with frame and front wheel.
5. Rims and tires out-of-true sideways (tire runout should
not be more than 0.080 in. (2.03 mm)).
6. Rims and tires out-of-round or eccentric with hub (tire
runout should not be more than 0.090 in. (2.29 mm)).
7. Irregular or peaked front tire tread wear.
8. Tire and wheel unbalanced.
9. Steering head bearings improperly adjusted. Correct
adjustment and replace pitted or worn bearings and
races. See FORK STEM AND BRACKET ASSEMBLY in
Section 2.
10. Shock absorber not functioning normally.
11. Heavy front end loading. Non-standard equipment on the
front end (such as heavy radio receivers, extra lighting
equipment or luggage) tends to cause unstable handling.

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