🏷️ Basic Information

Make:

Harley-Davidson

Model:

Dyna

Year:

2013

Dyna Generation Identifier:

2006-2017 (Third Generation Dyna Platform)

👋 Introduction

Vehicle Market Segment:

Cruiser/Performance Cruiser

Direct Competitors 2013:

Indian Chief, Victory Boardwalk/Cross Country, select Japanese V-twin cruisers (e.g., Yamaha Raider, Kawasaki Vulcan 2000)

Dyna Platform Characteristics:

Known for its robust chassis, potent V-twin engines, and customizable nature. Offers a more performance-oriented riding experience compared to Softail models.

📋 Manual Details

Applicable Models:

Harley-Davidson Dyna models (all variants: Super Glide Custom, Street Bob, Fat Bob, Switchback, Low Rider, etc.)

Estimated Page Count:

Over 700 pages (typical for a comprehensive service manual)

Manual Type:

Full Service & Repair Manual

Language:

English

Format:

Digital (likely PDF)

📖 Manual Coverage

Engine Systems:

Engine teardown, rebuild, internal components (pistons, rings, valves, camshafts), lubrication system, cooling system (air-cooled specifics), fuel injection, ignition system, exhaust system.

Transmission And Drivetrain:

Transmission teardown and rebuild, clutch operation and service, primary drive, final drive (belt drive maintenance, tensioning, replacement), gear shifting mechanisms.

Chassis And Suspension:

Frame inspection and repair, front fork service (disassembly, seal replacement, fluid changes), rear shock absorber service and adjustment, wheel and tire service, bearing maintenance.

Electrical System:

Wiring diagrams, lighting systems (headlights, taillights, turn signals), battery and charging system (alternator, regulator), starter system, ignition and fuel injection control modules (ECM/PCM), sensor diagnostics, diagnostic trouble codes (DTCs) and troubleshooting.

Braking System:

Brake caliper service, master cylinder overhaul, brake line bleeding and replacement, brake pad replacement, ABS system diagnostics (if equipped).

Bodywork And Accessories:

Fairing removal and installation, fender service, fuel tank service, seat removal, instrument panel servicing, accessory installation guidelines.

Routine Maintenance:

Oil and filter changes, air filter replacement, spark plug service, drive belt inspection and adjustment, brake fluid flush, clutch adjustment, tire pressure checks.

Diagnostic Procedures:

Troubleshooting common problems, identifying symptoms, using diagnostic tools and software (e.g., Harley-Davidson's Digital Technician Lite or similar aftermarket tools), reading sensor data, interpreting DTCs.

Major Repairs:

Engine rebuilds, transmission overhauls, fork rebuilds, brake system repairs, electrical system diagnostics and component replacement.

Performance Enhancements:

Guidelines for bolt-on modifications (e.g., exhaust systems, air intake), potential tuning considerations, and compatibility information.

Depth Of Coverage:

Comprehensive (covers from basic maintenance to complete engine and transmission rebuilds, including detailed torque specifications and special tool requirements).

📊 Manual Specifications

File Format Details:

Typically PDF; search functionality is usually present, allowing for quick navigation to specific topics.

Print Quality Notes:

Digital manuals offer consistent quality; if printed, quality depends on the source. Expect clear diagrams and text.

Binding Type Notes:

N/A for digital format. If a physical copy is acquired, binding can vary (spiral-bound, perfect bound).

Paper Type Notes:

N/A for digital format. Original factory manuals often used durable, glossy paper.

⚙️ Engine Specifications

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)

Compression Ratio:

9.6:1

Horsepower Approximate:

Approx. 75-80 HP at the crankshaft (model dependent)

Torque Approximate:

Approx. 100-105 ft-lbs at 3500 RPM (model dependent)

Fuel Delivery:

Electronic Sequential Port Fuel Injection (ESPFI)

Fuel Type:

Unleaded gasoline, minimum 91 octane (R+M)/2 recommended

Oil Type Specification:

Harley-Davidson SYN3 Synthetic (or equivalent SAE 20W-50 motorcycle oil meeting Harley-Davidson specification)

Oil Capacity With Filter:

5.0 US quarts (4.7 Liters)

Ignition Type:

Spark ignition, electronic ignition module

Spark Plug Type:

Harley-Davidson recommends specific NGK or equivalent spark plugs (e.g., NGK DCPR7EIX for iridium)

🔧 Transmission

Transmission Type:

6-speed Cruise Drive

Primary Drive:

Clutch, 9-plate, wet; Chain, 34/46 ratio

Final Drive:

Belt, 32/66 ratio (2.06:1)

Transmission Oil Type:

Harley-Davidson Formula+ Transmission and Primary Chaincase Lubricant (or equivalent SAE 85W-140 gear oil meeting H-D specification)

Transmission Oil Capacity:

24 US fluid ounces (0.71 Liters)

📐 Dimensions

Overall Length:

Approx. 92.5 in (2350 mm) - varies slightly by model variant

Wheelbase:

Approx. 64.2 in (1630 mm)

Dry Weight:

Approx. 650-675 lbs (295-306 kg) - varies by model variant

Gross Vehicle Weight Rating Gvwr:

Approx. 1050 lbs (476 kg)

Fuel Tank Capacity:

5.0 US gallons (18.9 Liters)

Front Tire Size:

MH90-21 54H (Dunlop D402F recommended)

Rear Tire Size:

150/80B16 71H (Dunlop D401 recommended)

Wheel Type:

Cast aluminum or Spoke (model dependent)

Wheel Bolt Pattern:

N/A (Hub-mounted, not bolt-on wheels)

🛡️ Safety Features

Safety Certifications:

DOT (Department of Transportation) compliant for lighting and braking.

ABS Availability:

Optional on some models, standard on certain higher-trim variants for 2013.

Frame Construction:

Steel, welded cradle frame for rigidity and durability.

Front Brake Type:

Dual 32 mm, 4-piston, fixed, hydraulic disc (or Single disc on some base models)

Rear Brake Type:

32 mm, 2-piston, floating, hydraulic disc

💡 Technology Features

Audio System Availability:

Optional on many Dyna models; typically a basic AM/FM radio with CD player or auxiliary input. Higher-end audio systems were more common on touring models.

Display Type:

Analog speedometer and tachometer with LCD display for odometer, trip meters, fuel level, and gear indicator.

Cruise Control Availability:

Optional on some Dyna models (e.g., Switchback) for 2013.

Bluetooth Connectivity:

Not standard on most Dyna models for 2013; often an aftermarket accessory or integrated into specific audio packages.

On Board Diagnostics:

OBD-II compliant (for emission-related diagnostics), accessible via dealer tools or compatible aftermarket scanners.

🔧 Maintenance

Initial Service Mileage:

1,000 miles (1,600 km) - typically includes engine oil change, primary chaincase oil change, inspection of all critical fasteners and components.

Subsequent Service Interval:

Every 5,000 miles (8,000 km) or 6 months, whichever comes first (for engine oil, filter, and general inspection).

Drive Belt Maintenance Interval:

Check tension and condition every 2,500 miles (4,000 km). Replace as needed based on wear and damage.

Brake Fluid Flush Interval:

Every 2 years or as recommended by service bulletins, regardless of mileage.

Engine Oil Viscosity:

SAE 20W-50 (Harley-Davidson SYN3 recommended)

Primary Chaincase Oil Specification:

Harley-Davidson Formula+ (or equivalent SAE 85W-140 gear oil)

Transmission Oil Specification:

Harley-Davidson Formula+ (or equivalent SAE 85W-140 gear oil)

Brake Fluid Type:

DOT 4, low viscosity (check specific model for variations)

Common Dyna Issues 2013:

Stalling at idle (related to throttle position sensor, idle air control, or vacuum leaks), potential for oil leaks from primary cover or crankcase seals, wear on wheel bearings, rear brake pad premature wear, vibrations at higher speeds (normal to an extent, but excessive indicates issues).

Cam Chain Tensioner Wear:

While later Twin Cam models addressed this, earlier ones (including some 2013s) could benefit from upgraded hydraulic cam chain tensioners as a preventative measure.

Oil Filter Part Number Example:

Harley-Davidson 63796-77B (or equivalent aftermarket)

Air Filter Part Number Example:

Harley-Davidson 29048-09 (or equivalent aftermarket for Twin Cam 103)

📚 Vehicle History

Harley Davidson Founding:

Founded in 1903, Milwaukee, Wisconsin.

Dyna Platform Introduction:

The Dyna line, characterized by its rubber-mounted engine in a traditional frame, was introduced in 1991. The 2006 model year saw a significant redesign, ushering in the third generation which includes the 2013 models.

Manufacturing Location:

Typically assembled in York, Pennsylvania, USA, and Milwaukee, Wisconsin, USA.

🏆 Awards & Recognition

Harley Davidson Brand Awards:

Harley-Davidson is consistently recognized for its brand heritage, iconic design, and rider community. Specific awards for individual models are less common than overall brand recognition.

Motorcycle Review Ratings:

The Dyna platform typically received positive reviews for its powerful engines and responsive handling within the cruiser segment.