Vehicle Segment:
Cruiser Motorcycle
Target Audience:
Touring and cruising enthusiasts seeking comfort, classic styling, and luggage capacity.
Competitors:
Other large displacement cruiser motorcycles from manufacturers like Indian Motorcycle, Victory Motorcycles (prior to discontinuation), and some Japanese brands offering similar styles.
Styling:
Classic cruiser styling with chrome accents, large fairing, and hard saddlebags.
Comfort:
Ergonomically designed for long-distance riding with a comfortable seat and floorboards.
Performance:
Torquey V-twin engine providing effortless acceleration and highway cruising capability.
Diy Support:
Empowers DIY mechanics and owners with comprehensive repair and maintenance guidance, reducing reliance on costly dealership services.
Engine System:
Detailed disassembly, assembly, troubleshooting, and specifications for the Twin Cam 103 Engine.
Fuel System:
Fuel injection system (EFI), throttle body, fuel pump, injectors, fuel tank, and fuel lines.
Ignition System:
Ignition module, spark plugs, coils, and troubleshooting of ignition-related faults.
Transmission System:
6-speed Cruise Drive transmission: disassembly, assembly, lubrication, troubleshooting, and component identification.
Clutch System:
Hydraulic clutch system, clutch plates, primary drive, and adjustments.
Brakes System:
Front and rear brake systems, calipers, master cylinders, brake lines, ABS (if equipped), and bleeding procedures.
Suspension System:
Front forks (including air suspension if applicable), rear shock absorbers, fork seals, and adjustments.
Electrical System:
Wiring diagrams, battery, charging system (stator, regulator/rectifier), lighting, starting system, horn, and instrument cluster.
Chassis Bodywork:
Frame, fenders, fuel tank, seat, handlebars, fairings (if applicable), saddlebags, and mounting hardware.
Cooling System:
Oil cooling system, oil pump, oil filter, and oil lines.
Exhaust System:
Exhaust pipes, mufflers, and catalytic converter (if applicable).
Maintenance Procedures:
Routine maintenance tasks such as oil changes, filter replacements, spark plug replacement, brake fluid changes, and belt inspections.
Repair Procedures:
Step-by-step instructions for component removal, installation, and repair across all major systems.
Troubleshooting Guides:
Diagnostic charts and procedures for identifying and resolving common and complex mechanical and electrical issues.
Special Tool Requirements:
Identification of specific tools required for certain maintenance and repair operations.
Tightening Specifications:
Torque values for all critical fasteners to ensure proper assembly and prevent component failure.
Diagnostic Capabilities:
Advanced diagnostic procedures, including interpretation of diagnostic trouble codes (DTCs) if the vehicle is equipped with diagnostic capabilities.
Rebuild Instructions:
Detailed instructions for complete engine and transmission overhauls and component rebuilding.
Electrical Schematics:
Comprehensive, high-quality wiring diagrams for all electrical circuits.
Engine Type:
Air-cooled, Twin Cam 103 V-Twin
Displacement:
1690 cc (103 cubic inches)
Bore X Stroke:
3.875 in. x 4.375 in. (98.4 mm x 111.1 mm)
Horsepower:
Approx. 75-85 HP (estimated, varies by specific tuning)
Torque:
Approx. 98-100 lb-ft @ 3000 RPM (estimated)
Fuel Delivery:
Electronic Sequential Port Fuel Injection (ESPFI)
Fuel Type:
Unleaded Premium Gasoline
Fuel Tank Capacity:
5.0 gallons (18.9 L)
Engine Oil Change:
Every 5,000 miles or 12 months (check manual for specifics).
Primary Chain Tensioner Inspection:
Inspect at 10,000 miles or as per manual's schedule.
Brake Fluid Flush:
Every 24 months.
Engine Oil Type:
Harley-Davidson SYN3 Full Synthetic Motorcycle Oil (or equivalent V-Twin specific synthetic oil), SAE 20W-50.
Primary Oil Type:
Harley-Davidson SYN3 Full Synthetic Motorcycle Oil or Formula+ Transmission Lubricant.
Transmission Oil Type:
Harley-Davidson SYN3 Full Synthetic Motorcycle Oil or Formula+ Transmission Lubricant.
Brake Fluid Type:
DOT 4 (for ABS and non-ABS systems, check manual for specific reservoirs).
Primary Chain Tensioner:
Hydraulic tensioner can wear prematurely, leading to noise and potential damage. Manual covers inspection and replacement with updated parts.
Cam Chain Tensioners:
Early Twin Cam models had issues with cam chain tensioner shoes wearing out. The 103 often uses improved components, but manual will guide inspection.
Oil Leaks:
Common areas include rocker box gaskets, base gaskets, and transmission seals. Manual provides procedures for diagnosis and repair.
Brand Origin:
Founded in 1903 in Milwaukee, Wisconsin, USA. Pioneer in motorcycle manufacturing.
Road King Introduction:
The Road King line was introduced in 1994, evolving from earlier FLH models, and has remained a staple in Harley-Davidson's touring lineup.
Twin Cam Era:
The 2010 model features the Twin Cam 103 engine, part of Harley-Davidson's move towards larger displacement engines for increased torque and performance, replacing the Evolution engine in many models.
Manufacturing Location:
Typically produced in York, Pennsylvania, USA, and Milwaukee, Wisconsin, USA.
