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Harley Davidson FLSTF/I Fat Boy

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Make Model

Harley Davidson FLSTF/I Fat Boy

Year

2003 - 04

Engine

Four stroke, 45° V-Twin, Twin Cam 88® vibration isolation-mounted Valves Pushrod-operated overhead valves; w/ hydraulic self-adjusting lifters; two valves per cylinder

Capacity

1449 cc / 88.4 cu-in
Bore x Stroke 95.3 x 101.6 mm
Cooling System Air cooled
Compression Ratio 8.9:1
Lubrication Dry sump, internally mounted, crank driven gerotor pressure and dual scavenge pump with spin on 10ì pressurized oil filter

Induction

Carburetion 40 mm constant velocity with enrichener and accelerator pump
ESPFI 38 mm throttle bore electronic sequential port fuel injection

Ignition 

Single-fire, non-wasted, map-controlled spark ignition
Starting Electric

Max Power

67 hp / 48.8 kW @ 5200 rpm

Max Torque

116.6 Nm / 86 lb-ft @ 3500rpm
Clutch  Wet 9-plate

Transmission 

5 Speed 
Final Drive Belt
Primary Drive Ratio  Chain, 36/25
Gear Ratio 1st 10.110
2nd 6.958
3rd 4.953
4th 3.862
5th 3.150
Frame Mild steel tubular frame; rectangular section backbone; stamped, cast and forged junctions;
forged fender supports; MIG welded
Swingarm Mild steel, rectangular tube sections,
stamped junctions, MIG welded

Front Suspension

41.3 mm Telescopic forks with ”beer can” covers
Front Wheel Travel 130 mm / 5.1 in

Rear Suspension

Hidden, horizontal-mounted, coil-over shock
Rear Wheel Travel 109 mm / 4.3 in

Front Brakes

Single 292mm disc 4 piston caliper

Rear Brakes

Single 292mm disc 4 piston caliper

Front Tyre

D402F MT90B16 72H

Rear Tyre

D401 150/80B16 71H
Rake 32°
Fork Angle 32°
Trail 147 mm / 5.8 in
Dimensions Length 2395.2 mm / 94.3 in
Wheelbase 1638 mm / 64.5 in
Seat Height Laden2 645.2 mm / 25.4 in
Unladen 698.5mm / 27.5 in
Ground Clearance 130 mm /. 5.1 in

Dry Weight

310 kg / 683 lbs
Wet Weight 324 kg / 714 lbs
Oil Capacity 3.3 Litres / 3.5 qts.

Fuel Capacity

18.9 Litres / 5.0 US gal

One of the most popular models ever created by Harley-Davidson, the FLSTF, or Fat Boy, was back for another round in 2004. Only subtle alterations had been made to its appearance for the latest model year, including an all-silver sheet metal array teamed with a black frame.  The newest editions of the Fat Boy did, however, benefit from the installation of the Twin-Cam 88 motor. The added displacement was a welcome addition, and both civilians and the media were impressed by the motor's smoothness.

The Fat Boy® model is the epitome of "Big Custom". It's powered by the Twin Cam 88B™ engine. There's nothing skinny about this machine: fat FL forks, fat 16" front tire, black and chrome engine treatment, shotgun exhaust, full-sized floor boards, and broad handlebars make people notice it in a crowd. A 7-inch chrome headlamp, leather-laced seat and tank panel, and an unmistakable tank emblem all add to the distinctive look.

Rigid mount, 1450cc Twin Cam 88B™ balanced engine
Black powder-coated engine with chrome covers
Fat FL front forks
Solid disc front and rear wheels
Fat tires
Floorboards
FL rear fender
Large chrome headlight with fork nacelle
Available Options*

Electronic Fuel Injection
Security System
* Not available in all countries

New in 2004

Long lasting tail light
Lower effort clutch
Longer life brake pads
New powertrain seals
Chrome plated head bolts
Color Options

Vivid Black
Brilliant Silver
Sierra Red
Smokey Gold
Luxury Blue
Lava Red Sunglo
Glacier White Pearl
Two-Tone Impact Blue and Vivid Black
Two-Tone Luxury Teal and Brilliant Silver
Two-Tone Sierra Red and Brilliant Silver
Two-Tone Smokey Gold and Vivid Black