Vehicle Market Segment:
Cruiser/Touring motorcycle, known for its classic styling, comfortable ride, and V-twin engine rumble.
Competitors:
Competes with other large-displacement V-twin cruisers from manufacturers like Indian Motorcycle, Victory Motorcycles (prior to discontinuation), and some Japanese brands offering retro-styled cruisers.
Model Highlights:
Iconic styling inspired by classic Harley-Davidson motorcycles of the 1940s and 1950s, comfortable rider ergonomics, large-displacement V-twin engine, extensive customization potential, and the heritage of the Harley-Davidson brand.
Engine:
Detailed coverage of the Twin Cam 103 engine, including disassembly, assembly, inspection, and troubleshooting for components like cylinders, pistons, crankshaft, camshafts, valve train, oil pump, and primary drive.
Fuel System:
Includes procedures for fuel injection (EFI) system servicing, fuel pump, fuel filter replacement, throttle body cleaning, and diagnostic codes.
Transmission:
Coverage for the Cruise Drive 6-speed transmission, including clutch operation, gear shifting mechanisms, lubrication, and troubleshooting.
Electrical System:
Extensive coverage of the electrical system, including wiring diagrams, battery maintenance, charging system (stator, regulator/rectifier), ignition system, lighting, starter, and accessory installation.
Braking System:
Detailed procedures for front and rear brake systems, including hydraulic circuits, brake caliper service, brake pad replacement, brake fluid flushing, and ABS (if equipped).
Suspension:
Front fork servicing (oil changes, seal replacement) and rear shock absorber maintenance and adjustment.
Chassis And Frame:
Information on frame components, steering head bearing service, wheel bearing replacement, and alignment.
Body And Trim:
Procedures for fairing, fenders, fuel tank removal and installation, seat servicing, and luggage systems.
Routine Maintenance:
Scheduled maintenance tasks such as oil and filter changes, air filter replacement, spark plug replacement, and lubrication points.
Troubleshooting:
Systematic diagnostic procedures for identifying and resolving common and uncommon issues, including symptom-based troubleshooting charts.
Engine Rebuild:
Complete step-by-step instructions for engine disassembly, inspection of internal components, repair or replacement, and reassembly.
Transmission Overhaul:
Detailed guides for transmission disassembly, gear inspection, bearing replacement, and reassembly.
Electrical Diagnostics:
Procedures for diagnosing electrical faults using multimeters, interpreting wiring diagrams, and testing specific circuits and components.
Brake System Repair:
Guidance on caliper overhaul, master cylinder replacement, and brake line bleeding.
Wheel And Tire Service:
Instructions for wheel bearing replacement, tire mounting and balancing.
Depth Of Coverage:
Factory-level technical depth, suitable for professional technicians and experienced DIY mechanics. Covers everything from basic fluid changes to complete engine and transmission overhauls.
Digital Format:
Typically PDF, often with searchable text and high-resolution diagrams.
Print Quality:
High-quality printing with clear text and detailed, legible diagrams and illustrations.
Binding:
Professional binding suitable for workshop use, often spiral-bound or perfect-bound for flat opening.
Paper Type:
Durable, often glossy paper to withstand workshop conditions and protect diagrams.
Engine Type:
Air-cooled, Twin Cam 103B V-twin
Displacement:
103 cubic inches (1690 cc)
Bore X Stroke:
3.875 in. x 4.380 in. (98.4 mm x 111.3 mm)
Valve Train:
Pushrod-actuated, overhead valves with 2 valves per cylinder.
Peak Horsepower:
Approximately 70-75 HP (engine dependent, typically measured at crank).
Peak Torque:
Approximately 96-100 lb-ft @ 3,500 rpm (engine dependent, typically measured at crank).
Fuel Delivery:
Electronic Sequential Port Fuel Injection (ESPFI) with automatic ומדוד (altitude and temperature compensation).
Fuel Type:
Premium Unleaded Gasoline (91 octane or higher recommended).
Transmission Type:
Cruise Drive 6-speed constant mesh
Primary Drive:
Dual-clutch, enclosed 34/46 ratio, 1.353
Final Drive:
Carbon belt, 32/66 ratio, 2.063
Clutch Type:
Cable actuated, 9-plate, wet
Safety Standards:
Meets applicable US EPA, CARB, and DOT standards for motorcycles.
Brakes:
Standard 4-piston front caliper, 2-piston rear caliper, hydraulic disc brakes. Optional ABS available on some models.
Lighting:
Halogen headlight, LED tail lamp and stop lamp, front and rear amber incandescent turn signals.
Frame Construction:
Steel, 2-2-1, Pro-Pipe Exhaust System (stock configuration).
Audio System:
Optional Boom! Box 4.3 infotainment system with 5.25-inch speakers, AM/FM radio, optional CB/intercom, and jukebox functionality (USB/iPod connectivity). Features a glove box with USB port.
Display:
4.3-inch color touchscreen display (Boom! Box 4.3).
ABS:
Antilock Braking System (ABS) was an optional feature on the 2016 Heritage Softail Classic.
Bluetooth:
Available with the Boom! Box infotainment system for audio streaming and hands-free calling.
Engine Oil Change:
Every 5,000 miles (8,000 km) or 12 months, whichever comes first.
Primary Chain Tension:
Check every 2,500 miles (4,000 km) or as needed; adjust if necessary.
Spark Plug Replacement:
Recommended every 15,000 - 20,000 miles (24,000 - 32,000 km), depending on plug type and condition.
Engine Oil Type:
Harley-Davidson Genuine V-Twin 20W-50 Synthetic (or equivalent meeting specifications).
Engine Oil Capacity:
4.0 US quarts (3.8 L) with filter change.
Primary Chain Case Oil Type:
Harley-Davidson Genuine Primary Chain Lubricant or SYN3 (5W-30) Synthetic Transmission, Wet Clutch Lubricant (or equivalent meeting specifications).
Primary Chain Case Oil Capacity:
2.8 US quarts (2.6 L).
Transmission Oil Type:
Harley-Davidson Genuine Syn3 (75W-90) Synthetic Transmission, Wet Clutch Lubricant (or equivalent meeting specifications).
Transmission Oil Capacity:
2.8 US quarts (2.6 L).
Brake Fluid Type:
DOT 4 (for most Harley-Davidson models of this era, confirm with manual).
Common Wear Items:
Clutch plates, brake pads, fork seals, wheel bearings, and front tire wear due to vehicle weight and riding style. Primary chain tensioner wear can also occur over time.
Engine Temperatures:
Air-cooled engines can run hot in extreme conditions; proper maintenance of cooling fins and oil levels is crucial. Some owners opt for oil coolers or fan-assisted cooling systems.
