Segment:
Cruiser Motorcycle
Style:
Retro-styled, bobber-inspired cruiser
Competitors 2010:
Triumph Bonneville, Indian Chief Dark Horse, various Japanese V-twin cruisers (e.g., Yamaha Star Bolt, Kawasaki Vulcan).
Distinctive Styling:
Fat front tire (150mm), chopped front fender, solo seat, peanut-shaped fuel tank, drag-style handlebars.
Target Audience:
Riders seeking classic styling with modern V-twin performance, customization potential.
Primary Coverage:
2010 Harley-Davidson Sportster Forty-Eight (XL1200X)
Related Models Covered:
May include some overlapping procedures for other 2010 Sportster models (e.g., XL883N, XL1200N, XL1200C) with notes on specific differences.
Estimated Pages:
Over 500 pages (typical for comprehensive factory service manuals)
Type:
Service and Repair Manual
Engine Systems:
Engine assembly, disassembly, lubrication, cooling, ignition, fuel injection, emissions control.
Transmission Drivetrain:
Clutch, primary drive, transmission gears, final drive belt, troubleshooting.
Electrical System:
Wiring diagrams, battery, charging system, ignition system, lighting, instrumentation, starting system, security system.
Chassis Suspension:
Frame, front fork, rear suspension, wheels, tires, bearings, steering.
Braking System:
Front and rear brakes, hydraulic systems, components, bleeding procedures, troubleshooting.
Bodywork Fittings:
Fuel tank, fenders, seat, handlebars, controls, lighting, trim components.
Maintenance:
Scheduled maintenance, oil changes, filter replacements, brake fluid service, belt inspection and adjustment, spark plug replacement.
Troubleshooting:
Diagnostic procedures for common and uncommon issues, fault codes, symptoms and solutions.
Repair Rebuild:
Detailed instructions for component disassembly, inspection, repair, and reassembly for all major systems.
Diagnostics:
Step-by-step diagnostic charts, voltage/resistance checks, signal tracing.
Depth:
Comprehensive. Covers everything from basic rider maintenance to full engine and transmission overhauls.
User Level:
Suitable for experienced DIY mechanics and professional technicians.
Engine Type:
Air-cooled, Evolution V-Twin
Displacement:
1200 cc (73.4 cubic inches)
Bore X Stroke:
3.496 in. x 4.125 in. (88.8 mm x 104.8 mm)
Valve Train:
Overhead valve (OHV), 2 valves per cylinder
Cooling System:
Air-cooled
Horsepower Est:
Approx. 65-70 HP (manufacturer does not typically publish exact HP figures, this is an estimate based on similar models)
Torque Peak:
Approx. 70-75 ft-lbs @ 3200 RPM (manufacturer does not typically publish exact torque figures, this is an estimate based on similar models)
Fuel Delivery:
Electronic Sequential Port Fuel Injection (ESPFI)
Fuel Type:
Unleaded gasoline, 91 octane (R+M)/2 minimum
Crash Test Ratings:
N/A (Motorcycles are not subjected to standardized crash testing like cars)
Brakes:
Dual-action, front and rear disc brakes. Standard ABS not available on this model year.
Lighting:
Halogen headlight, LED tail light, incandescent turn signals.
Frame Construction:
Steel frame and swingarm.
Security:
Factory-installed H-D Smart Security System (optional on some trims, standard on others - check specific bike)
Audio System:
N/A (no factory-installed audio system on this model).
Display:
Analog speedometer with LCD odometer, gear indicator, clock, and diagnostic indicators. No advanced digital displays.
ABS:
Not standard on 2010 models. Available as an option on some Harley-Davidson models, but less common on the Forty-Eight's vintage-inspired platform.
Engine Oil Change:
Every 5,000 miles (8,000 km) or 12 months, whichever comes first.
Primary Chain Case Oil:
Every 10,000 miles (16,000 km) or 24 months.
Transmission Oil Change:
Every 20,000 miles (32,000 km) or 48 months.
Spark Plug Replacement:
Every 10,000 miles (16,000 km).
Brake Fluid Flush:
Every 24 months, regardless of mileage.
Engine Oil Type:
Harley-Davidson SYN3 (Synthetic) SAE 20W-50 Motorcycle Oil, or equivalent Harley-Davidson approved oil.
Engine Oil Capacity:
3.0 US quarts (2.8 L) with filter change.
Primary Chain Case Oil Type:
Harley-Davidson primary fluid or SAE 85W-140 gear oil.
Primary Chain Case Oil Capacity:
3.0 US pints (1.4 L).
Transmission Oil Type:
Harley-Davidson transmission fluid or SAE 85W-140 gear oil.
Transmission Oil Capacity:
1.0 US quart (0.95 L).
Brake Fluid Type:
DOT 4 brake fluid.
Potential Issues 2010:
Some owners report minor issues with vibration at higher RPMs, starter solenoid failures, and occasional electrical gremlins. Fuel delivery can be sensitive to fuel quality. The small fuel tank necessitates frequent refueling.
Manufacturer:
Harley-Davidson Motor Company, founded in 1903.
Sportster Lineage:
The Sportster line dates back to 1957, known for its sportier character compared to larger Harley models.
Introduction Of Forty Eight:
The Forty-Eight (XL1200X) was introduced for the 2010 model year, marking a significant styling departure with its retro 'bobber' aesthetic.
Manufacturing Location:
Kansas City, Missouri, USA
Industry Reviews 2010:
Received positive reviews for its styling and authentic V-twin character. Criticisms often focused on the limited fuel range and ergonomics for longer rides.
Customer Satisfaction:
Generally high among owners who appreciate its unique aesthetic and riding experience. Customization potential is a strong point.
Certification Standards:
Meets all applicable EPA, CARB, and DOT safety and emissions standards for its model year.
