Engine Mechanical:
Engine assembly, disassembly, overhaul, top end, bottom end, lubrication system, cooling (air-cooled), fuel system (carbureted and EFI).
Fuel System Efi:
Electronic Fuel Injection (EFI) system, throttle body, fuel injectors, fuel pump, sensors (MAP, IAT, O2), ECM operation and diagnosis.
Ignition System:
Ignition module, spark plugs, ignition coils, timing, diagnosis.
Transmission Drivetrain:
5-speed constant mesh transmission, clutch operation and adjustment, primary drive, final drive (belt drive), troubleshooting.
Suspension:
Front fork (telescopic), rear shock absorbers, fork oil specifications and replacement, shock absorber adjustment and replacement.
Brakes:
Front and rear brake systems (hydraulic disc brakes), brake pad replacement, caliper service, brake fluid specifications and bleeding, master cylinder overhaul.
Electrical System:
Battery, charging system (stator, regulator/rectifier), starting system (starter motor, solenoid), lighting system (headlamp, taillamp, turn signals), instrument cluster, wiring diagrams, fuses, relays.
Frame Bodywork:
Frame inspection and repair, body panel removal and installation, fenders, fuel tank, seat assembly, handlebars, controls.
Wheels Tires:
Wheel types (spoked, cast), bearing service, tire specifications, tire pressure recommendations, wheel alignment.
Diagnostics Troubleshooting:
General troubleshooting procedures, diagnostic trouble codes (DTCs) for EFI models, symptom-based troubleshooting.
Maintenance Routine:
Oil changes, filter replacement, chain adjustment (if applicable on some models), spark plug replacement, air filter cleaning/replacement, brake fluid flush.
Engine Rebuild:
Complete engine disassembly, inspection of internal components (pistons, cylinders, crankshaft, camshafts, valves), reassembly procedures, torque specifications.
Transmission Overhaul:
Transmission disassembly, gear inspection, bearing replacement, shift drum and pawl service, reassembly.
Electrical Component Replacement:
Starter motor replacement, stator replacement, regulator/rectifier replacement, battery servicing, sensor replacement.
Brake System Service:
Front and rear brake pad replacement, brake caliper overhaul, brake line replacement, brake bleeding procedures.
Suspension Adjustment Rebuild:
Fork seal replacement, fork oil viscosity and level specification, shock absorber servicing.
Depth Of Information:
Comprehensive, covering all aspects from basic maintenance to complex engine and transmission overhauls and electrical diagnostics.
Diagnostic Capability:
Detailed diagnostic procedures, including identification of fault codes for EFI models and systematic troubleshooting guides.
Diagrams Illustrations:
Includes detailed exploded views, wiring diagrams, and step-by-step illustrated procedures.
Engine Family:
Evolution (also known as Blockhead or Air-cooled V-Twin)
Configuration:
45-degree V-twin, air-cooled
Bore Stroke 883:
3.1875 in. x 3.5 in. (81 mm x 88 mm)
Displacement 883:
53.9 cu in. (883 cc)
Bore Stroke 1200:
3.4375 in. x 4.125 in. (87.4 mm x 104.8 mm)
Displacement 1200:
73.5 cu in. (1200 cc)
Horsepower 883 Est:
Approx. 55-60 HP @ 6000 RPM
Torque 883 Est:
Approx. 50-55 lb-ft @ 3500 RPM
Horsepower 1200 Est:
Approx. 65-70 HP @ 6000 RPM
Torque 1200 Est:
Approx. 70-75 lb-ft @ 3500 RPM
Fuel Delivery Carb:
Keihin CV (Constant Velocity) carburetor (e.g., CV40 for 1200, CV34 for 883)
Fuel Delivery Efi:
Electronic Fuel Injection (EFI) with single throttle body and injectors.
Fuel Type:
Unleaded gasoline, minimum 91 octane (R+M)/2 recommended.
Valvetrain Type:
Overhead Valve (OHV), 2 valves per cylinder, pushrod actuated.
Oil System Type:
Dry sump lubrication with oil tank integrated into the crankcase.
Initial Service:
First scheduled service typically at 1,000 miles (1,600 km) or 12 months.
Subsequent Oil Change:
Every 5,000 miles (8,000 km) or 12 months, whichever comes first.
Primary Chain Case Fluid Change:
Every 5,000 miles (8,000 km) or 12 months.
Engine Oil Filter Replacement:
At every engine oil change.
Spark Plug Replacement:
Typically every 10,000 - 15,000 miles (16,000 - 24,000 km).
Brake Fluid Flush Replace:
Every 2 years or as recommended by fluid manufacturer.
Engine Oil Type:
Harley-Davidson Syn3 (Fully Synthetic) SAE 20W-50 or equivalent motorcycle-specific synthetic oil.
Engine Oil Capacity:
Approx. 3 quarts (2.8 liters) with filter change (for 883/1200 Evolution engines).
Primary Chain Case Fluid Type:
Harley-Davidson Formula+ or SAE 50 motorcycle transmission oil.
Primary Chain Case Fluid Capacity:
Approx. 2.75 quarts (2.6 liters) - Check dipstick/level plug for accurate fill.
Brake Fluid Type:
DOT 4 (preferred) or DOT 5.1 compatible brake fluid (check manual for specific DOT 5 compatibility if applicable to your model).
Cam Chain Tensioner Wear:
Early Evolution engines (pre-2007) had hydraulic tensioners prone to wear. 2007+ models use an improved spring-loaded system, but inspection is still recommended.
Oil Leaks:
Common areas for minor leaks can include primary cover gaskets, pushrod tube seals, and rocker box gaskets.
Idle Control Module Icm:
Can be a source of rough idle or stalling on some EFI models, though less common on 2013 models compared to earlier ones.
Fuel Line Cracking:
Early fuel lines on some models could become brittle; inspect and replace if necessary, especially with ethanol fuels.
Harley Davidson Founding:
Founded in 1903, Milwaukee, Wisconsin, USA.
Sportster Lineage Start:
The Sportster line traces its roots back to the 1957 K-Model and the XLRTT racing models.
Sportster 2013 Generation:
Represents a refinement of the Evolution engine platform, which had been in production for decades, featuring updates for emissions and performance.
Key Sportster Characteristics:
Known for its compact size (relative to other Harley models), nimble handling, and V-twin rumble.
Manufacturing Location:
York, Pennsylvania, USA and Milwaukee, Wisconsin, USA (assembly locations for Harley-Davidson).