🏷️ Basic Information

Make:

Harley-Davidson

Model:

Dyna

Model Years Covered:

2008, 2009

Platform Code:

Dyna

Chassis Variant:

All Dyna Models

👋 Introduction

Positioning:

The Harley-Davidson Dyna series in 2008-2009 represented a significant evolution in the company's cruiser lineup, bridging the gap between the Sportster and the larger Touring models. They were known for their direct-handling characteristics and customizable V-twin engines.

Competitors:

Competed with models from Indian Motorcycle, Victory Motorcycles, and select Japanese cruisers from manufacturers like Yamaha, Kawasaki, and Suzuki.

Engine Type:

Air-cooled V-twin engine

Chassis Design:

Rubber-isolated powertrain for reduced vibration, twin downtubes

Style:

Classic cruiser styling with a focus on a muscular stance

📋 Manual Details

Primary Coverage:

Service, Maintenance, Troubleshooting, Repair

Engine Coverage:

All Engines

Transmission Coverage:

All Transmissions

Estimated Page Count:

Likely 600-900 pages (typical for Harley-Davidson factory service manuals of this era)

Type:

Workshop Repair Service Manual

Language:

English

Format:

PDF Download

📖 Manual Coverage

Engine:

Engine disassembly, assembly, troubleshooting, diagnostics, tuning, lubrication, cooling systems

Fuel System:

Fuel injection (EFI), fuel pump, fuel filter, fuel lines, throttle body, sensors

Ignition System:

Ignition module, spark plugs, coils, timing

Transmission:

Clutch, primary drive, gearbox, final drive belt

Electrical System:

Battery, charging system (alternator/stator, regulator/rectifier), starting system, lighting, indicators, horn, wiring diagrams, diagnostic codes

Braking System:

Brake calipers, master cylinders, brake lines, brake pads, rotors, bleeding procedures, ABS (if applicable)

Suspension:

Front forks (telescopic, potentially cartridge type), rear shocks, swingarm, bearings

Wheels Tires:

Wheel bearings, tire inspection and replacement, wheel balancing, spoke tension (if applicable)

Frame Chassis:

Frame inspection, steering head bearings, mounting points

Bodywork Fittings:

Fuel tank, fenders, seat, handlebars, controls, fairings (if equipped), instrumentation

Routine Maintenance:

Oil changes, filter replacement, chain adjustment (if applicable), spark plug replacement, air filter cleaning/replacement, lubrication points

Troubleshooting Diagnostics:

Step-by-step diagnostic charts for common and uncommon problems, DTC (Diagnostic Trouble Code) interpretation

Engine Repair:

Top-end rebuild (cylinder heads, pistons, rings), bottom-end rebuild (crankshaft, bearings), valve adjustment, timing chain/belt service

Transmission Repair:

Clutch adjustment and replacement, gear inspection, bearing replacement, seal replacement

Electrical Repair:

Component testing, wiring harness repair, battery charging system diagnosis

Brake Service:

Brake fluid flush and replacement, caliper rebuild, master cylinder replacement, rotor replacement

Suspension Service:

Fork oil change, seal replacement, shock absorber replacement

Wheel Tire Service:

Tire mounting and dismounting, wheel bearing replacement, balancing

Depth Level:

Comprehensive (suitable for professional technicians and advanced DIY enthusiasts)

Detail Level:

Includes detailed diagrams, torque specifications, special tool requirements, and step-by-step instructions for complex procedures

📊 Manual Specifications

Format:

PDF

Searchability:

Text-searchable (allows for quick lookup of terms and specifications)

Printability:

High-resolution for clear printing of diagrams and text

Binding:

N/A (Digital PDF)

Paper:

N/A (Digital PDF)

⚙️ Engine Specifications

Engine Family:

Twin Cam 96

Displacement:

1584 cc (96 cubic inches)

Bore X Stroke:

3.75 in. x 4.38 in. (95.25 mm x 111.25 mm)

Compression Ratio:

8.9:1

Horsepower:

Approximately 70-75 HP (at crankshaft, manufacturer claims vary slightly by model)

Torque:

Approximately 90-95 ft-lbs at 3,500 RPM (at crankshaft, manufacturer claims vary slightly by model)

Fuel Delivery:

Electronic Sequential Port Fuel Injection (ESPFI)

Fuel Type:

Unleaded gasoline, minimum 91 octane (RON + MON)/2 rating recommended

Cooling Method:

Air-cooled

Oil Type:

Harley-Davidson SYN3 (Synthetic) SAE 20W50 or equivalent motorcycle-specific oil

Oil Capacity:

Approximately 3.5 US quarts (3.3 Liters) with filter change

Ignition Type:

High-performance, electronic ignition module

Spark Plugs:

Typically Harley-Davidson or Screamin' Eagle iridium plugs (e.g., 6R12A or equivalent)

🔧 Transmission

Type:

6-speed constant mesh, cruise drive transmission

Optional Transmissions:

N/A for factory specifications, aftermarket options available

Primary Drive:

Duplex chain, compensator sprocket, clutch, oil bath

Final Drive:

Belt drive

Transmission Oil Type:

Harley-Davidson Formula+ Transmission and Primary Chaincase Lubricant (or equivalent)

Transmission Oil Capacity:

Approximately 1 US quart (0.95 Liters)

📐 Dimensions

Length:

Varies by specific Dyna model (e.g., Fat Bob, Street Bob, Super Glide, Low Rider) - typically around 90-93 inches

Width:

Varies by specific Dyna model - typically around 34-36 inches

Height:

Varies by specific Dyna model - typically around 45-48 inches

Dry Weight:

Varies by specific Dyna model - typically around 640-670 lbs (290-304 kg)

Gross Vehicle Weight Rating Gvwr:

Typically around 1000-1050 lbs (454-476 kg)

Fuel Tank Capacity:

Typically 5.0 US gallons (18.9 Liters)

🛡️ Safety Features

Safety Certifications:

Meets DOT requirements for motorcycle safety.

Braking System:

Front and rear disc brakes. Some models may have optional ABS (Anti-lock Braking System).

Lighting:

Halogen headlamp, LED tail/stop lamps, amber turn signals.

Frame Construction:

Steel cradle frame designed for stability.

Engine Isolation:

Rubber isolation mounts for the engine and transmission reduce rider fatigue.

💡 Technology Features

Instrumentation:

Analog speedometer, tachometer, fuel gauge, voltage meter, oil pressure indicator, turn signal indicators, hazard warning, engine diagnostics (MIL).

ABS:

Optional Anti-lock Braking System (ABS) available on some models.

Diagnostic System:

On-board diagnostics (OBD-II compatible for emissions and fault codes) with Harley-Davidson specific diagnostic connectors and tools.

Security:

Factory-installed H-D Smart Security System with proximity-based disarming (key fob).

🔧 Maintenance

First Service:

1,000 miles (1,600 km) or 6 months

Subsequent Services:

Every 5,000 miles (8,000 km) or 12 months thereafter (includes oil change, filter, inspection of various components)

Major Overhaul Intervals:

Not specified in typical service intervals; based on inspection and component wear.

Engine Oil:

Harley-Davidson SYN3 (Synthetic) SAE 20W50 or equivalent

Transmission Primary Oil:

Harley-Davidson Formula+ Transmission and Primary Chaincase Lubricant or equivalent

Brake Fluid:

DOT 4 brake fluid (non-silicone based)

Fork Oil:

Harley-Davidson Type E (5W) or Type HD 10W (depending on front end configuration and preference) - specified in manual

Cam Chain Tensioner:

Early Twin Cam engines (pre-2007) had plastic cam chain tensioners prone to wear; 2007+ models have updated hydraulic tensioners, but monitoring is still advised.

Crankshaft Runout:

While improved over earlier Twin Cams, checking crankshaft runout during engine work is a critical procedure detailed in the manual.

Regulator Rectifier:

Can be a failure point due to heat; proper ventilation and inspection are key.

Vibration:

While rubber-mounted, some vibration is inherent. Proper maintenance of mounts and balance helps.

📚 Vehicle History

Heritage:

Harley-Davidson, founded in 1903, is an iconic American motorcycle manufacturer with a rich history in creating cruisers, touring bikes, and performance motorcycles.

Dyan Lineage:

The Dyna line, introduced in 1991, evolved from the FXR platform, offering a blend of performance and traditional Harley-Davidson styling. The Twin Cam 88 was replaced by the Twin Cam 96 in 2007, leading to the models covered by this manual.

Manufacturing Location:

Harley-Davidson motorcycles for this era were primarily manufactured in the United States, with assembly plants in York, Pennsylvania, and Milwaukee, Wisconsin.

🏆 Awards & Recognition

Industry Recognition:

The Twin Cam 96 engine and Dyna platform were widely recognized for their refinement and power delivery within the cruiser segment, cementing Harley-Davidson's market dominance.

Consumer Ratings:

Owners consistently praised the torque, handling characteristics, and customization potential of the Dyna models.

Emissions Compliance:

Compliant with EPA emissions standards for the model year.