Motorcycle Segment:
Cruiser, Dyna family
Target Audience:
Harley-Davidson owners, independent repair shops, motorcycle technicians specializing in Harley-Davidson
Key Competitors:
Indian Motorcycles, other American V-twin manufacturers
Vehicle Philosophy:
A blend of classic styling with modern engineering, offering a comfortable ride and strong V-twin performance
Manual Value Proposition:
Provides essential technical information for maintaining, diagnosing, and repairing the 2008 FXD Super Glide Dyna, enabling cost-effective ownership and ensuring optimal performance.
Engine Mechanical:
Engine assembly, disassembly, inspection, lubrication, cooling system, fuel system, exhaust system, engine management
Transmission Drivetrain:
Primary drive, transmission, clutch, final drive belt
Electrical System:
Ignition system, charging system, starting system, lighting, instrumentation, sensors, wiring diagrams, ECM/VCM diagnostics
Suspension Steering:
Front fork assembly, rear shock absorbers, steering head, wheel bearings
Brakes:
Front and rear brake system components, hydraulic lines, calipers, master cylinders, ABS (if equipped)
Chassis Frame:
Frame inspection, body panels, fenders, seat, fuel tank mounting
Maintenance:
Scheduled maintenance, fluid changes, filter replacements, lubrication points, tire pressure checks
Troubleshooting:
Diagnostic charts, common problems and solutions, symptom-based troubleshooting
Repair Overhaul:
Component disassembly, inspection, repair, and reassembly procedures for all major systems
Diagnostics:
Diagnostic trouble codes (DTCs), sensor data interpretation, electrical system testing
Depth:
Comprehensive, covering basic maintenance to complete engine and transmission overhauls, electrical diagnostics, and frame/suspension work. Assumes technician familiarity with general automotive/motorcycle repair principles.
Searchability:
Typically searchable text within PDF format, allowing for quick information retrieval.
Printability:
Designed for printing, allowing users to print specific sections or the entire manual.
Binding:
Not applicable for PDF format (digital distribution). For printed versions, it would typically be comb-bound or perfect-bound.
Paper Quality:
Not applicable for PDF format (digital distribution). For printed versions, usually high-quality, durable paper suitable for workshop environments.
Engine Type:
Air-cooled, 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)
Torque Rating:
Approx. 92.6 ft-lbs (125.5 Nm) @ 3500 RPM (may vary slightly based on specific tuning and exhaust)
Horsepower Rating:
Estimated around 70-75 HP (exact factory rating not always published, often determined by dyno tests)
Fuel Delivery:
Electronic Sequential Port Fuel Injection (ESPFI)
Fuel Type:
Unleaded gasoline, minimum 91 octane (AKI)
Oil Type:
Harley-Davidson SYN3 Synthetic (or equivalent SAE 20W50 motorcycle oil meeting Harley-Davidson specifications)
Oil Capacity:
Approximately 4 US quarts (3.8 liters) with filter change
Transmission Type:
6-speed Cruise Drive
Gear Ratios:
1st: 9.312, 2nd: 6.650, 3rd: 4.945, 4th: 3.827, 5th: 3.143, 6th: 2.790 (typical ratios for Twin Cam 6-speed)
Clutch Type:
Hydraulic, multi-plate wet clutch
Final Drive Ratio:
3.15:1 (e.g., 32-tooth front pulley, 66-tooth rear pulley)
Transmission Fluid Type:
Harley-Davidson Formula Plus (or equivalent SAE 80W-90 gear oil meeting Harley-Davidson specifications)
Transmission Fluid Capacity:
Approximately 2.5 US quarts (2.4 liters)
Length:
Approx. 91.9 in. (2334 mm)
Width:
Approx. 37.2 in. (945 mm) (Handlebar width)
Height:
Approx. 49.6 in. (1260 mm)
Wheelbase:
Approx. 63.7 in. (1618 mm)
Ground Clearance:
Approx. 5.1 in. (130 mm)
Dry Weight:
Approx. 640 lbs (290 kg)
Gvwr:
Approx. 1160 lbs (526 kg)
Fuel Capacity:
5 gallons (18.9 liters)
Oil Capacity:
4 US quarts (3.8 liters)
Safety Standards:
Manufactured to meet applicable DOT (Department of Transportation) standards for motorcycles.
Braking System:
Dual-piston caliper front brake, dual-piston caliper rear brake. ABS was an optional feature for certain models/trims in 2008.
Lighting:
Halogen headlight, taillight, stoplight, front and rear turn signals.
Chassis Design:
Steel frame and swingarm construction for rigidity and stability.
Audio System:
Optional Harley-Davidson accessory audio systems were available, but not standard on all 2008 FXD models.
Instrumentation:
Analog speedometer, tachometer, fuel gauge, voltage meter, oil pressure indicator, and indicator lights.
ABS Availability:
Anti-lock Braking System (ABS) was an optional feature for some 2008 Harley-Davidson models.
Diagnostics Port:
ECM diagnostic connector (J1850 V-twin protocol) for use with Harley-Davidson diagnostic tools.
Initial Service:
First service typically at 1,000 miles (1,600 km) or 12 months, whichever comes first.
Subsequent Oil Changes:
Every 5,000 miles (8,000 km) or 12 months, whichever comes first (for SYN3 synthetic oil).
Transmission Fluid Change:
Every 10,000 miles (16,000 km) or 24 months.
Primary Chain Case Oil Change:
Every 5,000 miles (8,000 km) or 12 months.
Spark Plugs:
Inspect every 10,000 miles (16,000 km), replace as needed or at recommended intervals.
Drive Belt Tension Inspection:
Inspect at every 5,000 mile (8,000 km) service.
Engine Oil:
SAE 20W50 (Harley-Davidson SYN3 recommended)
Transmission Oil:
SAE 80W-90 gear oil (Harley-Davidson Formula Plus recommended)
Primary Chain Case Oil:
Harley-Davidson primary chain case lubricant (or equivalent specific primary fluid)
Brake Fluid:
DOT 4 (ensure compatibility with ABS if equipped)
Common Problems:
Cam chain tensioner wear (early Twin Cam models), compensator sprocket wear, clutch drag, potential oil leaks from engine seals.
Specific Model Year Notes:
2008 models with Twin Cam 96 engines are generally robust but benefit from regular maintenance and attention to any reported oil consumption or cam tensioner noise.
Filter Part Numbers:
Oil Filter: Harley-Davidson 63796-77A (or equivalent like 63731-99) - *Always verify current part numbers for your specific VIN.*
Manufacturer:
Harley-Davidson Motor Company, founded in 1903, a legendary American motorcycle manufacturer.
Dyna Lineage:
The Dyna platform, introduced in 1991, was known for its blend of traditional styling and modern features, positioned between the Softail and Sportster lines. The Super Glide was one of its foundational models.
Twin Cam Introduction:
The Twin Cam engine series, introduced in 1999, represented a significant technological advancement for Harley-Davidson, offering improved performance, reliability, and emissions compliance compared to the Evolution engine.
Production Period:
The Dyna platform was produced from 1991 until its discontinuation in 2017, replaced by the Softail platform.
Manufacturing Location:
Harley-Davidson motorcycles are primarily manufactured in the United States.
