Engine Mechanical:
Engine assembly, disassembly, inspection, lubrication system, oil pump, oil filter, cooling system (air-cooled), cylinder heads, cylinders, pistons, connecting rods, crankshaft, camshafts, valve train, timing.
Fuel System:
Fuel tank, fuel pump, fuel injectors, throttle body, idle air control, fuel pressure regulator, fuel lines, evaporative emission control system (EVAP).
Ignition System:
Ignition coils, spark plugs, ignition module, crankshaft position sensor, camshaft position sensor.
Transmission:
Clutch system, primary drive, transmission assembly, gear sets, shift mechanism, lubrication, final drive, belt drive, belt tensioner.
Electrical System:
Battery, charging system (stator, regulator/rectifier), starting system (starter motor, solenoid), lighting (headlight, tail light, turn signals, brake light), wiring diagrams, fuses, relays, ignition switch, instrument cluster, sensors, ECM/ECU, diagnostic connector (4-pin).
Brakes:
Front and rear brake calipers, master cylinders, brake lines, brake pads, brake discs, bleeding procedures, hydraulic system.
Suspension:
Front forks (telescopic), rear shock absorbers, fork oil, preload adjustment, damping.
Steering:
Handlebars, steering head bearings, steering stem, fork assembly.
Frame And Body:
Frame inspection, body panels, fenders, fuel tank mounting, seat mounting, fairings, exhaust system.
Maintenance:
Routine checks, oil changes, filter replacements, spark plug replacement, belt inspection and adjustment, brake fluid flush, fork oil change, battery maintenance.
Diagnostics:
Troubleshooting guides for common issues, diagnostic trouble codes (DTCs), electrical system testing, engine performance diagnostics.
Repair:
Step-by-step instructions for component removal, installation, and overhaul of all major systems.
Rebuilds:
Detailed procedures for engine internal component rebuilds, transmission overhauls, and suspension component refurbishment.
Depth:
Comprehensive, covering everything from basic rider maintenance to full engine and transmission rebuilds, including electrical diagnostics and troubleshooting.
Engine Family:
Twin Cam 96 V-Twin
Displacement:
1584 cc (96 cubic inches)
Bore X Stroke:
3.75 in. x 4.38 in. (95.25 mm x 111.25 mm)
Valve Train:
Overhead valve (OHV), 4 valves per cylinder (2 per head), pushrod actuated.
Cooling System:
Air-cooled
Horsepower:
Approx. 70-75 HP (at crankshaft)
Torque:
Approx. 92.6 ft-lbs (at crankshaft) @ 3000 RPM
Fuel Delivery:
Electronic Sequential Port Fuel Injection (ESPFI)
Fuel Type:
Unleaded gasoline, minimum 91 octane (Research Octane Number)
Transmission Type:
6-speed, Cruise Drive Transmission
Gear Ratios:
1st: 9.311, 2nd: 6.597, 3rd: 4.771, 4th: 3.852, 5th: 3.174, 6th: 2.790
Primary Drive:
Gear drive with wet, multi-plate clutch
Final Drive:
Belt drive, 32/66 ratio
Clutch Type:
Hydraulic assisted, wet multi-plate
Transmission Fluid Type:
Harley-Davidson SYN3 (or equivalent SAE 20W-50 synthetic) for primary and transmission
Oil Change Interval:
Every 5,000 miles (8,000 km) or 6 months, whichever comes first.
Primary Chain Tensioner Inspection:
Check at 1,000 miles (1,600 km) and every 10,000 miles (16,000 km) thereafter. Automatic tensioner upgrade is a common modification.
Spark Plug Replacement:
Every 10,000 miles (16,000 km) or 12 months.
Brake Fluid Flush:
Every 24 months, regardless of mileage.
Belt Drive Inspection:
Check tension and condition every 2,500 miles (4,000 km).
Engine Oil:
Harley-Davidson SYN3 (SAE 20W-50 synthetic) or equivalent meeting Harley-Davidson specification.
Primary Transmission Fluid:
Harley-Davidson SYN3 (SAE 20W-50 synthetic) or equivalent.
Brake Fluid:
DOT 4 hydraulic fluid.
Fork Oil:
Harley-Davidson Factory Fork Oil (or equivalent with specified viscosity, often a mid-weight oil like 10W or 15W).
Common Wear Items:
Clutch plates, wheel bearings, brake pads, fork seals, primary chain tensioner (pre-2015 models).
Electrical Concerns:
Occasional issues with charging system components (regulator/rectifier), starter solenoid, and wiring harness integrity in high-mileage bikes. The manual provides diagnostic steps for these.
Engine Performance:
While robust, issues like cam bearing failure or oil pressure problems can occur. The manual details inspection and repair procedures.
Brand Legacy:
Harley-Davidson, established in 1903, is an iconic American motorcycle manufacturer renowned for its V-twin engines, cruiser styling, and rich motorsport heritage.
Dyna Lineage:
The Dyna line, introduced in 1991, bridged the gap between the lighter Sportster and the heavier Touring models, offering a blend of performance and classic styling with its rubber-mounted engine and traditional frame. The FXDC was a popular custom variant within this line.
Production Period:
The Dyna platform was produced from 1991 to 2017, with the FXDC model being a consistent offering during much of this period. The 2013 model year represents a mature iteration of the platform.
