Segment:
Cruiser / Power Cruiser
Target Audience:
Harley-Davidson Dyna owners, independent repair shops, enthusiasts seeking in-depth maintenance knowledge.
Key Competitors Platform:
While the manual is specific to Harley-Davidson, it serves the same function as manuals for comparable American V-twin motorcycles from brands like Indian (though historically less direct competition in this specific era for the Dyna platform) and some custom builders.
Authenticity:
Official Factory Service Manual ensures accuracy and completeness.
Usability:
PDF format allows for targeted printing, digital searching, and on-demand access.
Value Proposition:
Enables DIY maintenance and repairs, reducing dealership service costs and empowering owners.
Primary Coverage:
Complete Factory Service Repair
Model Years Covered:
2008
Sub Models Covered:
All Harley-Davidson Dyna models for 2008 (e.g., Super Glide, Custom, Low Rider, Wide Glide, Street Bob, Fat Bob - exact designations confirmed in manual)
Estimated Pages:
Hundreds (specific count varies based on printing/digital rendition, but implies comprehensive coverage)
Type:
Factory Service Repair Manual
Purpose:
Diagnosis, repair, maintenance, and troubleshooting
Printability:
Printable in its entirety or select pages
Powertrain:
Engine (Twin Cam 96), transmission, clutch, final drive
Chassis:
Frame, suspension (front and rear), steering, wheels, tires
Electrical:
Ignition, starting, charging, lighting, instrumentation, ECM, sensors, wiring diagrams
Braking:
Front and rear brake systems (hydraulic components, calipers, rotors, master cylinders)
Fuel System:
Fuel injection (EFI), fuel pump, fuel tank, lines
Exhaust:
Exhaust system components and routing
Bodywork And Trim:
Fenders, fuel tank, seat, handlebars, controls, fairings (if applicable to specific models)
Maintenance:
Scheduled maintenance, oil changes, filter replacements, chain adjustment (if applicable), spark plug replacement, brake fluid flush
Troubleshooting:
Diagnostic procedures, fault code interpretation, common problem solutions
Repair:
Component removal and installation, engine overhaul, transmission repair, brake caliper rebuild, electrical component replacement
Diagnostics:
System diagnostics, multimeter usage, sensor testing, ECU diagnostics
Depth:
Comprehensive: Covers basic checks to full engine rebuilds and advanced electrical diagnostics.
Detail Level:
Includes torque specifications, clearances, timing procedures, wiring schematics, and diagnostic flowcharts.
Engine Family:
Harley-Davidson Twin Cam 96 (TC96)
Configuration:
45-degree V-twin, pushrod actuated overhead valves
Displacement:
96 cubic inches (approx. 1584 cc)
Bore X Stroke:
3.75 in. x 4.38 in. (95.25 mm x 111.25 mm)
Compression Ratio:
9.2:1 (typical, may vary slightly)
Horsepower Estimated:
Approx. 65-70 HP at rear wheel (stock, varies with exhaust/intake modifications)
Torque Estimated:
Approx. 85-90 ft-lbs at rear wheel (stock, varies with exhaust/intake modifications)
Fuel Delivery:
Electronic Sequential Port Fuel Injection (ESPFI) / Magneti Marelli
Fuel Type:
Unleaded gasoline, minimum 91 octane (RON+MON)/2 / 87 octane (USA)
System:
Distributorless Electronic Ignition (DEI), coil-on-plug or coil-near-plug system
System:
Dry sump with integrated oil tank
Type:
6-speed Cruise Drive Transmission
Gear Ratios:
Specific ratios for each gear are detailed in the manual (e.g., 1st: 9.315, 2nd: 6.652, 3rd: 4.948, 4th: 3.811, 5th: 3.157, 6th: 2.790 typical for TC96)
Clutch Type:
Wet, multi-plate, diaphragm spring
Final Drive:
Belt drive (70T rear, 34T front pulley typical)
Transmission Oil:
Harley-Davidson Formula+ Transmission/Primary Chaincase Lubricant (or equivalent SAE 50 motor oil for primary, and specific gear oil for transmission - manual will specify exact H-D part numbers and types)
Wheelbase:
Approx. 64.2 inches (varies by specific Dyna model)
Length:
Approx. 92.5 inches (varies by specific Dyna model)
Dry Weight:
Approx. 640 lbs (varies by specific Dyna model)
Gross Vehicle Weight Rating:
As specified by manufacturer, detailed in manual
Capacity:
Primarily rider and passenger; limited integrated cargo space, often supplemented with aftermarket saddlebags/luggage.
Crash Testing:
Motorcycles are not typically subject to the same government crash testing standards as automobiles. Safety relies on design and rider input. Manual will detail design safety features.
Braking System:
Dual-piston caliper front brake, single-piston caliper rear brake (some models may have optional ABS, detailed in manual)
Lighting:
Halogen headlamp, LED tail/brake light, incandescent turn signals
Frame Design:
Steel tube frame for stability
Engine Guard:
Optional, can be specified in manual
Display:
Analog speedometer, tachometer, fuel gauge, and indicator lights. Some models may have basic trip computers.
Audio:
Optional audio systems were available, with integration details covered if present on specific models in the manual.
ABS:
Optional Anti-lock Braking System (ABS) on some models, specified in the manual.
Diagnostics Port:
Data link connector (DLC) for diagnostic scan tools (e.g., Harley-Davidson Digital Technician) is covered.
Initial Service:
Typically 1,000 miles (break-in service: engine oil, primary chaincase oil, transmission oil, primary chain adjustment, filter replacement - specific details in manual)
Routine Maintenance:
10,000 mile intervals for major services, 5,000 mile intervals for specific checks (e.g., tire pressure, brake wear). Manual will provide detailed schedule.
Engine Oil:
Harley-Davidson 20W-50 SYN3 Synthetic or equivalent H-D approved motorcycle oil. Capacity approx. 4 quarts (3.8L) with filter change. Manual specifies H-D part numbers.
Primary Chaincase Oil:
Harley-Davidson Formula+ Transmission/Primary Chaincase Lubricant or SAE 50 motor oil. Capacity approx. 1 quart (0.95L). Manual specifies H-D part numbers.
Brake Fluid:
DOT 4 hydraulic fluid for all brake systems. Manual specifies H-D part numbers.
Fork Oil:
Specific weight and volume of fork oil required, detailed by model in the manual.
Common Wear Items:
Clutch plates, brake pads, tires, fork seals, drive belt (inspect for wear/damage).
Electrical Connections:
Corrosion on connectors, loose wiring can lead to intermittent issues. Manual details diagnostic approaches.
Harley Specific:
Primary chain tensioner wear, oil pressure sensor issues, idle air control (IAC) valve on earlier EFI systems. Manual will provide troubleshooting for these.
Foundation:
Harley-Davidson Motor Company, founded in 1903, is one of the oldest American motorcycle manufacturers.
Dyna Introduction:
The Dyna platform was introduced in 1991, evolving from the Shovelhead/Evo era Big Twin frame designs. The 2008 model represents a significant iteration of this platform, featuring the Twin Cam 96 engine and 6-speed transmission.
Manufacturing Location:
United States (primary manufacturing facilities)
Model Lifecycle:
The Dyna line was produced until it was phased out and its models were largely absorbed into the Softail family in 2018.
