This manual covers the 2010 Sportster, a celebrated model in the mid-size cruiser segment. Known for its iconic styling and the reliable air-cooled Evolution V-twin engine, available in 883cc and 1200cc displacements, the Sportster offers accessible performance and a strong foundation for customization. The 2010 models, including variants like the Iron 883, Nightster, 1200 Custom, 1200 Low, and XR1200X, continue the Sportster's lineage dating back to 1957, featuring electronic sequential port fuel injection and a 5-speed transmission. These motorcycles are engineered for riders seeking a classic American riding experience, characterized by their distinctive sound and enduring build quality. This comprehensive Factory Service/Workshop Manual in English provides detailed guidance for maintaining and repairing all 2010 Sportster models. It covers a wide array of systems, including the engine, transmission, fuel, electrical, brake, and suspension systems, offering in-depth procedures for routine maintenance, major repairs, and diagnostics. Included are troubleshooting guides, detailed wiring diagrams, torque specifications, and identification of special tools, empowering owners and technicians. The manual's extensive coverage ensures that users can effectively perform tasks ranging from simple oil changes to complex engine rebuilds, ultimately supporting the longevity and optimal performance of the vehicle. 🏷️ Basic Information Identification Make: Harley-Davidson Model: Sportster Year: 2010 Generation Sportster Generation: Evo Sportster (Evolution Engine Series) Codes Engine Code General: Evolution 👋 Introduction Market Position Market Segment: Mid-size cruiser motorcycle segment. Competitive Analysis Competitors 2010: Triumph Bonneville, Indian Chief (though different price point), various Japanese cruisers (e.g., Yamaha V-Star, Honda Shadow). Key Features Sportster Identity: Iconic styling, air-cooled V-twin engine, accessible performance, customizability. Manual Value Proposition: Empowers owners and independent mechanics with factory-level repair and maintenance knowledge, saving significant costs over dealership service. 📋 Manual Details Coverage Areas Covered Models: All 2010 Harley-Davidson Sportster models (e.g., Iron 883, Nightster, 1200 Custom, 1200 Low, XR1200X) Page Count Estimated Page Count: Extensive (typically 500-700+ pages for a comprehensive factory service manual) Manual Type Manual Type: Factory Service / Workshop Manual Language Language: English Format Format: PDF Download 📖 Manual Coverage Systems Covered Engine System: Engine disassembly, assembly, tuning, diagnostics, troubleshooting for Evolution 883cc and 1200cc V-Twin engines. Transmission System: 5-speed transmission service, repair, clutch operation, gear inspection, lubrication. Fuel System: EFI (Electronic Fuel Injection) system diagnostics, throttle body service, fuel pump, injectors, and related sensors. Electrical System: Ignition system, lighting, starting system, charging system, battery maintenance, wiring diagrams, ECM (Engine Control Module) troubleshooting. Brake System: Hydraulic brake system service, caliper maintenance, master cylinder, brake lines, bleeding procedures. Suspension System: Front fork service (including damping adjustments if applicable), rear shock absorber maintenance, spring rates. Frame And Body: Frame inspection, fairings, fenders, seat, fuel tank removal/installation, basic bodywork repair. Wheel And Tire: Wheel bearing service, tire mounting/balancing, spoke tensioning (if applicable), rim specifications. Exhaust System: Exhaust pipe removal, mufflers, hanger inspection, torque specifications. Controls And Cables: Handlebar controls, throttle cables, clutch cable adjustment and replacement. Diagnostics: Diagnostic trouble codes (DTCs), Harley-Davidson Digital Technician integration, symptom-based troubleshooting. Procedures Included Routine Maintenance: Oil changes, filter replacement, spark plug inspection/replacement, chain adjustment (if applicable), air filter cleaning/replacement. Major Repairs: Engine rebuilds, transmission overhauls, clutch replacement, fork seal replacement, brake pad replacement. Troubleshooting Guides: Systematic troubleshooting for common performance issues, starting problems, electrical faults. Wiring Diagrams: Detailed electrical schematics for all major systems, color-coded for ease of use. Torque Specifications: Comprehensive list of all fastener torque values for critical components. Special Tool Identification: Identification and usage of specialized Harley-Davidson tools required for specific repairs. Technical Depth Depth Of Coverage: Comprehensive (covers from basic maintenance to full engine and transmission rebuilds, including electrical diagnostics). 📊 Manual Specifications File Format File Format: PDF (Portable Document Format) Print Quality Print Quality: High Resolution (suitable for clear printing and digital viewing) Binding Type Binding Type: N/A (Digital Download) Paper Type Paper Type: N/A (Digital Download) ⚙️ Engine Specifications Primary Engine Engine Type: Air-cooled, Evolution V-twin Displacement 883: 883 cc (53.9 cu in) Displacement 1200: 1200 cc (73.2 cu in) Bore Stroke 883: 76.2 mm x 96.8 mm (3.00 in x 3.81 in) Bore Stroke 1200: 88.9 mm x 96.8 mm (3.50 in x 3.81 in) Compression Ratio Approx: 9.3:1 (varies slightly by model/year) Performance Horsepower Approx 883: 50-55 HP Horsepower Approx 1200: 65-70 HP Torque Approx 883: 55-60 lb-ft @ 3500-4000 RPM Torque Approx 1200: 70-75 lb-ft @ 3500-4000 RPM Fuel System Fuel Delivery: Electronic Sequential Port Fuel Injection (ESPFI) Fuel Type: Unleaded gasoline, minimum 91 octane Ignition System: Dual-fire, resistor-spark plug, coil-on-plug ignition 🔧 Transmission Standard Transmission Type: 5-speed constant mesh, helical gears Primary Drive: Duplex chain, 1.409:1 ratio Final Drive: Belt, 32/66 ratio (3.09:1) Features Clutch Type: Clutch, wet, multi-plate, cork-based friction plates Transmission Fluid Spec: Harley-Davidson Formula+ (or equivalent SAE 50 gear oil for transmission and primary). 📐 Dimensions Exterior Length Approx: Approx. 85-90 inches (2160-2286 mm), varies by model Wheelbase Approx: Approx. 59.8-60.5 inches (1520-1537...