Motorcycle Segment:
Cruiser, Muscle Cruiser
Target Audience:
Riders seeking a powerful, stylish, and customizable cruiser.
Key Competitors:
Indian Scout, Triumph Bonneville Bobber, some Japanese cruiser models in the same displacement class.
Design Philosophy:
Long, low stance, aggressive rake, fat front tire, exposed engine.
Engine Heritage:
Iconic Harley-Davidson V-twin design.
Customization Potential:
High degree of customization typical of Harley-Davidson models.
Engine Overhaul:
Complete disassembly, inspection, repair, and reassembly of the Twin Cam 103B engine.
Transmission Service:
6-speed Cruise Drive transmission maintenance, repair, and troubleshooting.
Electrical System:
Wiring diagrams, component testing, troubleshooting of lighting, ignition, charging, and fuel injection systems.
Fuel System:
EFI diagnostics, fuel pump, injectors, throttle body service.
Brakes:
Front and rear brake system service, including hydraulic components and ABS (if equipped).
Suspension:
Front fork and rear shock absorber maintenance, adjustment, and repair.
Chassis And Frame:
Frame inspection, steering head bearing service, and component mounting.
Bodywork And Trim:
Fender, tank, seat, and accessory mounting and service.
Wheels And Tires:
Tire replacement, wheel bearing service, and wheel balancing.
Routine Maintenance:
Oil changes, filter replacements, spark plug service, drive belt adjustment.
Troubleshooting Diagnostics:
Step-by-step guides for identifying and resolving common and uncommon issues.
Component Replacement:
Detailed instructions for replacing major and minor components.
Performance Tuning:
Information on engine tuning, exhaust modifications, and EFI recalibration (basic).
Specifications And Tolerances:
Precise torque values, clearances, and measurement specifications for all components.
Parts Identification:
Detailed parts diagrams and identification for ordering correct replacements.
Depth Level:
Comprehensive factory-level repair and maintenance.
Detail Level:
Hundreds of pages with detailed photos and diagrams.
Diagrams:
Highly detailed exploded diagrams and pictures.
Instructions:
Step-by-step instructions for all procedures.
Engine Name:
Twin Cam 103B
Engine Configuration:
45-degree V-twin
Bore X Stroke:
3.875 in. x 4.38 in. (98.4 mm x 111.3 mm)
Cooling System:
Air-cooled
Horsepower Approximate:
Approx. 70-75 HP (varies by source and tuning)
Torque Approximate:
Approx. 98-100 ft-lbs @ 3,000 RPM (varies by source)
Fuel Delivery:
Electronic Sequential Port Fuel Injection (ESPFI)
Fuel Type:
Premium unleaded gasoline
Oil Type:
Harley-Davidson Genuine Formula + Transmission and Primary Chaincase Lubricant, or equivalent API SG or higher, JASO FD, FLHTC approved.
Oil Capacity:
Approx. 5 U.S. quarts (4.7 liters) for engine and primary.
Type:
6-speed Cruise Drive
Gear Ratios:
1st: 9.312, 2nd: 6.321, 3rd: 4.761, 4th: 3.841, 5th: 3.346, 6th: 2.792
Primary Drive:
Gear, 37/26 ratio (1.423)
Final Drive:
Belt, 32/66 ratio (2.063)
Clutch Type:
Hydraulic, wet multi-plate
Transmission Fluid:
Harley-Davidson Genuine Formula + Transmission and Primary Chaincase Lubricant, or equivalent.
ABS Availability:
Optional on some models/trims within the year range.
Braking System:
Hydraulic disc brakes front and rear.
Lighting:
Halogen headlight, LED tail light, and front/rear turn signals.
Chassis Design:
Rigid steel frame providing stability.
First Service:
1,000 miles (1,600 km) or 6 months.
Subsequent Services:
Every 5,000 miles (8,000 km) or 12 months.
Drive Belt Tension:
Check at 5,000 mile intervals, adjust as needed.
Engine Oil Grade:
SAE 20W-50 Harley-Davidson Genuine V-Twin Motor Oil or equivalent.
Primary Chaincase Lubricant:
Harley-Davidson Genuine Formula + Transmission and Primary Chaincase Lubricant, or equivalent.
Transmission Fluid:
Harley-Davidson Genuine Formula + Transmission and Primary Chaincase Lubricant, or equivalent.
Cam Chain Tensioner Wear:
Early Twin Cam models (pre-2007) had hydraulic tensioners prone to wear; later models (including this range) use updated, more robust tensioners, but inspection is still advised.
Crankcase Breather System:
Proper functioning is crucial to avoid oil carry-over into the air intake.
Exhaust Leaks:
Potential for leaks at header pipe to cylinder head or muffler clamps if not properly torqued or if gaskets fail.
Brand Foundation:
Founded in 1903, Milwaukee, Wisconsin.
Legacy:
Iconic American motorcycle manufacturer known for its V-twin engines and cruiser styling.
Breakout Introduction:
Introduced in 2013 as a distinct model with a focus on aggressive styling and performance.
Engine Updates:
The 1690cc (103 cubic inch) Twin Cam engine became standard for many models, including the Breakout, offering increased torque and performance over earlier displacements.
Manufacturing Location:
United States
