Positioning:
The Harley-Davidson XL1200C Sportster Custom is a cruiser motorcycle known for its classic styling, V-twin engine, and a heritage of customization. Positioned as an accessible entry into the Sportster line, it appeals to riders seeking iconic Harley-Davidson style and performance.
Competitors:
Competes with other middleweight cruiser motorcycles from brands like Indian, Triumph, and Japanese manufacturers, particularly models offering a similar blend of classic aesthetics and V-twin power.
Features:
Iconic Sportster styling, Evolution V-twin engine, comfortable riding position, chrome accents, spoked wheels, custom aesthetics.
Engine:
Complete engine overhaul, carburetor tuning, fuel injection system, ignition system, lubrication system, cooling system (if applicable), exhaust system.
Transmission:
5-speed transmission, clutch assembly, primary drive, final drive, gear shifting mechanisms.
Chassis:
Frame, suspension (front forks, rear shock absorbers), steering system, wheel bearings, swingarm, maintenance of all chassis components.
Electrical:
Wiring diagrams, battery, charging system (stator, regulator/rectifier), starter motor, lighting system (headlight, taillight, signals), ignition switch, instrumentation, horn, fuses, relays, diagnostic codes.
Brakes:
Front and rear brake systems, hydraulic lines, brake calipers, brake pads, master cylinders, brake fluid specifications, bleeding procedures.
Fuel System:
Fuel tank, fuel lines, fuel filter, carburetor (Keihin CV 40mm for this model) maintenance and adjustment, fuel pump (if applicable).
Bodywork:
Fenders, fuel tank mounting, seat assembly, handlebars, controls, fairings (if applicable), cosmetic component removal and installation.
Maintenance:
Routine service, oil changes, filter replacements, spark plug replacement, chain adjustment/lubrication, brake pad inspection/replacement, tire pressure checks, battery maintenance.
Diagnostics:
Troubleshooting guides for common malfunctions, interpreting diagnostic trouble codes (DTCs), identifying electrical faults, engine performance issues, and driveability problems.
Repair:
Detailed step-by-step repair instructions for all major components, including engine teardown and reassembly, transmission rebuilds, suspension overhauls, brake system repairs, and electrical component replacement.
Adjustment:
Carburetor idle and mixture adjustments, clutch cable adjustment, throttle cable adjustment, suspension preload adjustments.
Technical Specifications:
Torque specifications for critical fasteners, engine timing procedures, valve lash adjustment, fluid capacities, electrical system voltages.
Depth:
Comprehensive from basic owner maintenance to complete engine and transmission rebuilds, including advanced diagnostics and electrical troubleshooting.
Engine Type:
Air-cooled, Evolution V-twin
Displacement:
1200cc (73.4 cubic inches)
Bore X Stroke:
3.496 in. x 3.811 in. (88.8 mm x 96.8 mm)
Horsepower:
Approximately 65-70 HP (rated)
Torque:
Approximately 70-75 ft-lbs (rated)
Carburetor:
Keihin CV 40mm
Fuel Type:
Unleaded gasoline, minimum 91 octane (RON+MON)/91 AKI recommended.
Transmission Type:
5-speed constant mesh
Clutch:
Wet, multi-plate, 9-plate
Primary Drive:
46/30 ratio, 1.533:1, Chain drive
Final Drive:
48/16 ratio, 3.00:1, Belt drive
Transmission Fluid:
Harley-Davidson primary fluid, or equivalent API GL-4, SAE 75W/90 synthetic transmission oil.
First Service:
1,000 miles (1,600 km) or 6 months, whichever comes first (includes oil change, primary chain inspection, belt tension check, brake inspection).
Subsequent Service:
Every 5,000 miles (8,000 km) or 12 months thereafter, with more comprehensive checks and fluid changes at 10,000, 20,000 miles, etc.
Engine Oil:
Harley-Davidson V-Twin 20W-50 (or equivalent API CI-4 or higher rated synthetic motorcycle oil).
Primary Chain Case Oil:
Harley-Davidson Primary Chain Lubricant or SAE 75W/90 API GL-4 synthetic oil.
Transmission Oil:
Harley-Davidson Transmission Lubricant or SAE 75W/90 API GL-4 synthetic oil.
Brake Fluid:
DOT 4 brake fluid (typically for models with ABS, check specific model if equipped).
Fork Oil:
Harley-Davidson 10W fork oil or equivalent.
Common Wear Items:
Clutch plates, brake pads, front fork seals, drive belt, spark plugs, battery.
Potential Problems:
Carburetor tuning can be sensitive, potential for oil leaks from engine seals over time, charging system issues (stator/regulator) can occur on older models.
Brand History:
Harley-Davidson is an American motorcycle manufacturer founded in 1903, renowned for its cruiser motorcycles, V-twin engines, and distinctive sound and styling. It is one of the oldest motorcycle companies in the world.
Sportster Line:
The Sportster line, introduced in 1957, represents Harley-Davidson's entry into sportier motorcycle designs. Over the decades, it has evolved significantly, with the 1200cc Evolution engine becoming a staple of the line, offering increased performance and reliability.
Production Period:
The XL1200C Sportster Custom has been a popular model within the Sportster range for many years, with the 2008 model year featuring specific refinements and updates.
