Category:
Cruiser Motorcycle
Target Demographic:
Riders seeking classic styling with modern performance, often appealing to a younger demographic or those preferring a more stripped-down aesthetic.
Direct Competitors:
Other V-twin cruisers from brands like Indian, Triumph Bonneville variants, and some Japanese cruiser offerings in a similar displacement class.
Styling:
Blacked-out components, low-slung profile, minimalist design, forward foot controls, drag-style handlebars.
Engine Layout:
Air-cooled, Evolution V-twin
Engine Mechanical:
Engine disassembly, assembly, troubleshooting, inspection, specifications for cylinders, pistons, crankshaft, camshafts, valvetrain.
Fuel System:
Fuel injection system (EFI), throttle body, fuel pump, fuel filter, fuel lines, troubleshooting and diagnostics.
Ignition System:
Ignition module, spark plugs, ignition coils, wiring, troubleshooting.
Transmission:
Clutch operation, primary drive, transmission gears, shift mechanism, lubrication, troubleshooting.
Electrical System:
Wiring diagrams, battery, charging system (stator, regulator/rectifier), starting system (starter motor, solenoid), lighting, instrumentation, fuses, relays, troubleshooting.
Brake System:
Front and rear brake calipers, master cylinders, brake lines, brake fluid, bleeding procedures, troubleshooting.
Suspension System:
Front fork (telescopic), rear shock absorbers, swingarm, bearings, lubrication, adjustment, troubleshooting.
Wheel And Tires:
Wheel bearing inspection and replacement, tire pressure specifications, wheel alignment (if applicable).
Frame And Body:
Frame inspection, body panels, mounting hardware, seat, fenders, fuel tank removal/installation.
Routine Maintenance:
Oil changes, filter replacements, spark plug inspection/replacement, chain adjustment (if applicable), brake fluid checks, tire pressure checks.
Diagnostic Procedures:
Troubleshooting guides for common and uncommon issues, diagnostic trouble codes (DTCs) for EFI system.
Repair Procedures:
Step-by-step instructions for component removal, repair, and reinstallation for all major systems.
Overhaul Procedures:
Detailed instructions for complete engine and transmission overhauls, including torque specifications and clearances.
Wiring Diagrams:
Comprehensive, color-coded wiring diagrams for all electrical circuits.
Depth Level:
Comprehensive Factory Service and Repair
Target Audience:
Professional Technicians and Experienced DIY Mechanics
Engine Type:
Air-cooled, Evolution V-twin
Displacement:
1200cc (73.4 cubic inches)
Bore X Stroke:
3.496 in. x 4.125 in. (88.8 mm x 104.8 mm)
Fuel System:
Electronic Sequential Port Fuel Injection (ESPFI)
Horsepower:
Approximately 65-70 HP (estimated, as Harley-Davidson historically provided torque figures primarily for this era).
Torque:
Approximately 70-75 ft-lbs @ 3500 RPM (estimated, typical for this engine configuration).
Max Engine Speed:
Recommended not to exceed 5500 RPM for sustained operation.
Length:
Approximately 88.5 inches (2248 mm)
Width:
Approximately 35.9 inches (912 mm) at handlebars
Height:
Approximately 44.2 inches (1123 mm) at handlebars
Wheelbase:
60.4 inches (1534 mm)
Ground Clearance:
Approximately 4.5 inches (114 mm)
Dry Weight:
Approximately 552 lbs (250 kg)
Gross Vehicle Weight Rating:
Approximately 925 lbs (420 kg)
Fuel Capacity:
3.5 gallons (13.2 L)
Instrumentation:
Analog speedometer, tachometer (on some models), digital odometer, trip meter, clock, gear indicator, fuel gauge, and warning lamps.
ABS:
Anti-lock Braking System (ABS) was an optional feature on the 2009 Nightster. The manual will cover its operation and diagnostics if equipped.
Diagnostics:
Onboard diagnostics system (OBD-II compliant, where applicable) for engine management and fault code retrieval via specialized tools.
Engine Oil Change:
Every 5,000 miles (8,000 km) or 12 months, whichever comes first.
Primary Chain Case Oil Change:
Every 10,000 miles (16,000 km) or 24 months.
Spark Plug Replacement:
Inspect at 10,000 miles (16,000 km), replace as needed. Consult manual for specific mileage.
Brake Fluid Flush:
Every 24 months (recommended) or as specified by fluid manufacturer.
Belt Tension Check:
Every 5,000 miles (8,000 km).
Engine Oil Type:
Harley-Davidson Genuine V-Twin 20W-50 (or equivalent API CG-4 or higher specification oil).
Engine Oil Capacity:
3.0 US quarts (2.8 L) with filter change.
Primary Chain Case Oil Type:
Harley-Davidson Genuine Formula + (or equivalent GL-4 rated transmission lubricant).
Primary Chain Case Oil Capacity:
24 US fluid ounces (0.71 L).
Common Wear Items:
Clutch plates, wheel bearings, brake pads, and fork seals are typical wear items requiring periodic inspection and replacement.
Efi Diagnostics:
The manual provides detailed procedures for diagnosing common EFI issues such as idle problems, hesitation, or fault codes.
Brand Focus:
Harley-Davidson has a long-standing heritage of producing V-twin motorcycles with a focus on customization, rider experience, and classic American styling.
Sportster Lineage:
The Sportster line dates back to 1957, evolving significantly over the decades while retaining its core identity as a sportier, more nimble Harley-Davidson offering.
Nightster Introduction:
The Nightster model, introduced in 2007, represented a darker, more aggressive interpretation of the Sportster, with a focus on blacked-out components and a lower-slung stance.
Manufacturing Location:
United States (primarily Wisconsin)
