Model Segment:
Cruiser/Touring motorcycle.
Target Audience:
Harley-Davidson owners, independent repair shops, DIY enthusiasts.
Key Competitors:
Indian Motorcycles, other V-twin cruisers from Japanese manufacturers (e.g., Honda Shadow, Yamaha V-Star).
Unique Selling Proposition:
The FLD Dyna Switchback offers the versatility of detachable saddlebags and windscreen, allowing it to transition from a cruiser to a light tourer.
Manual Value Proposition:
Provides essential knowledge for maintaining and repairing a sophisticated American V-twin motorcycle, saving on dealership service costs.
Primary Coverage:
All service and repair procedures for the 2015 Harley-Davidson FLD Dyna Switchback.
Estimated Page Count:
Approximately 500-700 pages (typical for a comprehensive workshop manual of this era).
Manual Type:
Workshop Service Repair Manual
Format:
Downloadable (likely PDF)
Engine Systems:
Engine assembly, disassembly, tuning, lubrication, cooling, fuel delivery (EFI), ignition, exhaust.
Transmission Drivetrain:
Transmission assembly, disassembly, clutch operation, primary drive, final drive (belt).
Chassis Suspension:
Frame inspection, front fork assembly, rear shock absorber servicing, wheel and tire service.
Electrical System:
Wiring diagrams, lighting system, ignition system, starting system, charging system, instrumentation, security system.
Brake System:
Front and rear brake caliper service, master cylinder overhaul, brake fluid replacement, ABS (if equipped).
Fuel System:
Fuel injection system diagnostics, fuel pump, injectors, throttle body, fuel tank servicing.
Maintenance Procedures:
Oil changes, filter replacements, spark plug replacement, belt tensioning, brake fluid flushing, battery maintenance.
Diagnostic Procedures:
Troubleshooting guides, fault code interpretation, electrical system diagnostics, engine performance analysis.
Repair Procedures:
Engine rebuilds, transmission overhauls, suspension component replacement, electrical component repair, bodywork repairs.
Technical Specifications:
Torque specifications, clearances, fluid capacities, electrical resistance values, component tolerances.
Depth Of Coverage:
Comprehensive: from routine maintenance to complete engine and transmission rebuilds, including detailed electrical schematics and diagnostic procedures.
Engine Family:
Harley-Davidson Twin Cam 103
Engine Type:
Air-cooled, 45-degree V-twin
Displacement:
103 cubic inches (1690 cc)
Bore X Stroke:
3.875 in x 4.38 in (98.4 mm x 111.3 mm)
Compression Ratio:
9.6:1 (typical for Twin Cam 103)
Horsepower:
Approx. 75-80 HP (at crankshaft, estimated)
Torque:
Approx. 98-100 lb-ft @ 3,000 RPM (at crankshaft, estimated)
Fuel Delivery:
Electronic Sequential Port Fuel Injection (ESPFI) with Electronic Throttle Control (ETC).
Fuel Type:
Unleaded gasoline, minimum 91 octane (RON + MON)/2)
Ignition System:
High-performance, dual-fire, map-controlled spark ignition.
Transmission Type:
6-speed Cruise Drive
Gear Ratios:
1st: 9.311, 2nd: 6.454, 3rd: 4.793, 4th: 3.851, 5th: 3.279, 6th: 2.790 (typical for Twin Cam 6-speed)
Clutch Type:
Hydraulic, Assist & Slip Clutch
Primary Drive:
Duplex chain, rubber isolated, 34/46 ratio
Final Drive:
Belt, 32/66 ratio
Transmission Fluid:
Harley-Davidson Formula + Transmission, J1703, or equivalent.
Length:
Approx. 91.5 in (2324 mm)
Seat Height:
Approx. 25.6 in (650 mm) unladen
Ground Clearance:
Approx. 4.8 in (122 mm)
Dry Weight:
Approx. 681 lbs (309 kg)
Gross Vehicle Weight Rating:
Approx. 1180 lbs (535 kg)
Saddlebag Capacity:
Detachable, approximate total capacity of 2.2 cubic feet.
Wheel Bolt Pattern:
5x4.5 inch (standard for Harley-Davidson)
Crash Test Ratings:
Motorcycles are not subject to the same standardized crash testing as passenger cars. Safety is evaluated through design and active safety features.
Braking System:
Dual disc front brakes, single disc rear brake with optional Anti-lock Braking System (ABS).
Lighting:
Halogen headlamp, LED tail lamp and brake lamp, amber incandescent front and rear turn signals.
Frame Construction:
Steel, rigid frame with cradle.
Security:
Harley-Davidson Smart Security System with H.I.S.S. (Hands-free Immobilizer Security System) and siren (optional/standard depending on market).
Audio System:
Optional AM/FM/WB radio with CD/MP3 player and handlebar-mounted controls. May also include auxiliary input.
Display:
Analog speedometer and tachometer with a digital display for odometer, trip meters, fuel level, and gear indication.
Cruise Control:
Electronic cruise control (standard on many models).
Diagnostic Ports:
Data port for diagnostic tools (e.g., Harley-Davidson Dealer Diagnostic Tool - DDDT).
First Service:
1,000 miles or 6 months (whichever comes first) - typically includes oil change, primary chaincase fluid change, inspection of all components.
Subsequent Service:
Every 5,000 miles or 12 months - includes oil and filter change, inspection of various systems.
Belt Tension Check:
Typically checked every 5,000 miles.
Engine Oil:
Harley-Davidson SYN3 (synthetic) SAE 20W50, or equivalent API CI-4 rated diesel engine oil (typically 50W for older air-cooled V-twins).
Brake Fluid:
DOT 4 hydraulic brake fluid.
Engine Oil Capacity:
Approx. 4 quarts (3.8 liters) with filter change.
Primary Chaincase Capacity:
Approx. 1 quart (0.95 liters).
Transmission Capacity:
Approx. 24 oz (0.71 liters).
Common Issues Dyna Platform:
Potential for oil leaks at primary cover, transmission seal leaks, regulator/rectifier failures, clutch judder, vibration at idle.
Diagnostic Challenges:
Electronic fuel injection system diagnostics can require specialized tools and knowledge not always covered in basic manuals.
Manufacturer Origin:
United States
Brand Legacy:
Harley-Davidson is an iconic American motorcycle manufacturer with a history dating back to 1903, renowned for its V-twin engines and cruiser/touring motorcycles.
Dyna Platform Introduction:
The Dyna platform was introduced in 1991, evolving from earlier Harley-Davidson designs and characterized by its rubber-mounted engine for reduced vibration.
Switchback Introduction:
The FLD Dyna Switchback was introduced in 2012, distinguishing itself with detachable fairing and saddlebags, offering dual-purpose functionality.
2015 Model Updates:
The 2015 model year for the Dyna platform generally featured refinements to the Twin Cam 103 engine, braking systems, and potentially updated styling or features. Specific updates for the FLD Switchback would be detailed in the manual.
Manufacturing Location:
United States (primarily Milwaukee, Wisconsin, and York, Pennsylvania).
