Model Segment:
Cruiser motorcycle
Target Demographic:
Riders seeking a classic cruiser aesthetic with modern performance and handling characteristics.
Key Competitors:
Other 1200cc class cruisers from manufacturers like Indian, Triumph, and custom builders.
Design Philosophy:
Emphasizes minimalist styling, accessible performance, and a strong connection to Harley-Davidson's heritage.
Distinguishing Characteristics:
Low seat height, distinctive styling elements, and the characteristic Harley-Davidson V-twin rumble.
Engine:
Detailed procedures for engine disassembly, inspection, assembly, troubleshooting, and overhaul of the Evolution 1200cc engine.
Transmission:
Coverage of the 5-speed transmission, including clutch, gearbox, and final drive maintenance and repair.
Fuel System:
Information on fuel injection (EFI) system, fuel pump, injectors, and throttle body maintenance and diagnostics.
Electrical System:
Comprehensive wiring diagrams, troubleshooting guides for ignition, lighting, starting, charging, and accessory systems.
Brakes:
Service procedures for hydraulic disc brakes, including caliper overhaul, fluid replacement, and bleeding.
Suspension:
Details on front fork (telescopic) and rear shock absorber servicing, adjustment, and replacement.
Frame And Bodywork:
Procedures for frame inspection, fairing removal/installation, and body component repair.
Scheduled Maintenance:
Detailed descriptions of routine maintenance tasks and service intervals.
Troubleshooting:
Systematic diagnostic charts and procedures for identifying and resolving common problems.
Repair Overhaul:
Step-by-step instructions for component disassembly, repair, and reassembly.
Component Replacement:
Guidelines for replacing wear items, damaged parts, and upgrades.
Diagnostic Procedures:
Information on using diagnostic tools and interpreting fault codes (if applicable to the era/model).
Depth:
Comprehensive, from basic fluid changes to complete engine and transmission rebuilds.
Diagnostic Capabilities:
Advanced diagnostic procedures for electronic and mechanical systems.
Rebuild Instructions:
Detailed instructions for engine and transmission component rebuilding, including tolerances and specifications.
Engine Type:
Air-cooled, Evolution V-twin
Displacement:
73.4 cu in (1199.6 cc)
Bore X Stroke:
3.500 in x 3.812 in (88.9 mm x 96.8 mm)
Valve Train:
Overhead valves (OHV), 2 valves per cylinder
Horsepower:
Approx. 67 hp @ 5200 rpm (manufacturer estimate, not always officially quoted)
Torque:
Approx. 71 lb-ft @ 3200 rpm (manufacturer estimate, not always officially quoted)
Fuel Delivery:
Electronic Sequential Port Fuel Injection (ESPFI)
Fuel Type:
Unleaded gasoline, 91 octane (R+M)/2 minimum
Ignition System:
Electronic ignition with knock sensor
Crash Test Results:
Motorcycles are not subjected to standardized crash testing like automobiles. Safety is primarily addressed through design and rider training.
Braking System:
Dual-channel ABS (Anti-lock Braking System) available as an option
Lighting:
Halogen headlight, LED taillight and brake lights
Frame Construction:
Steel frame and swingarm designed for stability and handling.
First Service:
1,000 miles (1,600 km) or 6 months, whichever comes first (check oil, primary, transmission fluids, chain, belt, brakes, etc.)
Subsequent Services:
Every 5,000 miles (8,000 km) or 12 months for regular service (includes engine oil change, filter, inspection of various components).
Transmission Fluid Change:
Every 10,000 miles (16,000 km) or 24 months.
Engine Oil:
Harley-Davidson Genuine V-Twin 20W50 or equivalent motorcycle-specific synthetic oil.
Primary Chaincase Lubricant:
Harley-Davidson Formula + Transmission and Primary Chaincase Lubricant.
Brake Fluid:
DOT 4 approved brake fluid.
Fork Oil:
Refer to manual for specific weight and capacity; typically Harley-Davidson Factory Recommended Fork Oil.
Common Wear Items:
Clutch plates, brake pads, tires, drive belt, spark plugs.
Potential Electrical Gremlins:
As with many bikes of this era, attention to wiring harness integrity, battery connections, and voltage regulator function is advised.
Engine Vibration:
Some riders report higher levels of vibration compared to more modern bikes due to the rigid engine mount design (though this is also a characteristic feature).
Fuel System Maintenance:
Keeping fuel injectors clean and using quality fuel is important for optimal performance.
Brand Founding:
1903, Milwaukee, Wisconsin, USA
Brand Legacy:
Iconic American motorcycle manufacturer known for V-twin engines and cruiser styling.
Sportster Lineage:
The Sportster line has been in continuous production since 1957, evolving through various engine sizes and styling cues.
Nightster Introduction:
The Nightster variant, introduced in 2007, offered a more stripped-down, minimalist aesthetic with side-mounted instrumentation.
Manufacturing Location:
United States
