Segment:
Cruiser Motorcycle
Target Audience:
Owners and independent mechanics seeking detailed repair and maintenance information for the 2008 Harley-Davidson FXDL Dyna Low Rider.
Competitors:
Other V-twin cruisers in its class (e.g., Indian Chief, certain Yamaha models) though Harley-Davidson's Dyna platform has a distinct following.
Platform Heritage:
The Dyna platform is known for its rigid frame, traditional styling, and accessible V-twin power.
Low Rider Design:
The Low Rider designation typically implies a lower seat height and rider-forward ergonomics, appealing to a wider range of riders.
Engine Mechanical:
Engine disassembly, assembly, tuning, lubrication, cooling system, ignition system, fuel system, exhaust system.
Transmission Drivetrain:
Clutch, primary drive, transmission, final drive belt.
Electrical System:
Battery, charging system, starting system, ignition system, lighting, instruments, gauges, horn, switches, wiring diagrams.
Chassis Suspension:
Frame, front fork, rear suspension, swingarm, steering, wheels, tires.
Braking System:
Front and rear brakes, hydraulic system, components, bleeding procedures.
Fuel System:
Fuel tank, fuel pump, fuel injectors, throttle body, fuel lines, fuel filter.
Bodywork Fittings:
Fenders, fuel tank, seat, handlebars, controls, fairings (if applicable), emblems.
Routine Maintenance:
Oil changes, filter replacements, lubrication, chain adjustment (if applicable), brake pad inspection, tire pressure checks.
Diagnostic Troubleshooting:
Step-by-step troubleshooting guides for common and uncommon issues, symptom-based diagnostics.
Major Repairs:
Engine rebuilds, transmission overhaul, fork seal replacement, brake caliper service, electrical component replacement.
Component Overhaul:
Detailed procedures for disassembling, cleaning, inspecting, and reassembling major motorcycle components.
Electrical Diagnostics:
Wiring diagram interpretation, circuit testing, fault finding for electrical systems.
Depth:
Comprehensive: Covers everything from basic scheduled maintenance to complete engine and transmission rebuilds, including detailed electrical diagnostics and troubleshooting.
Engine Type:
Air-cooled, Twin Cam 96 V-Twin
Displacement:
1584 cc (96 cubic inches)
Bore X Stroke:
3.75 in x 4.48 in (95.25 mm x 113.79 mm)
Valve Train:
Pushrod actuated, overhead valves with two valves per cylinder
Horsepower Estimated:
Approx. 70-80 HP (at crankshaft, varies with exhaust and tuning)
Torque Estimated:
Approx. 92-96 ft-lbs (at crankshaft, varies with exhaust and tuning)
Fuel Delivery:
Electronic Sequential Port Fuel Injection (ESPFI) with throttle body
Fuel Type:
Unleaded gasoline, minimum 87 octane
Oil Type:
Harley-Davidson Genuine V-Twin 20W-50 Synthetic (or equivalent)
Oil Capacity:
3.7 US quarts (3.5 liters) with filter change
Transmission Type:
6-speed, constant mesh
Clutch Type:
Cable-actuated, wet, multi-plate
Primary Drive:
Duplex chain, 34/46 ratio
Final Drive:
Belt drive, 32/66 ratio
Gear Ratios:
1st: 9.315, 2nd: 6.444, 3rd: 4.747, 4th: 3.727, 5th: 3.215, 6th: 2.790
Transmission Fluid:
Harley-Davidson Formula+ Transmission & Primary Chaincase Lubricant (or equivalent)
Transmission Fluid Capacity:
1.0 US quart (0.95 liters)
Safety Standards:
As per Federal Motor Vehicle Safety Standards (FMVSS) applicable to motorcycles.
Brakes:
Dual-action front disc brake, single-action rear disc brake. ABS was an optional feature for certain models/markets in 2008.
Lighting:
Halogen headlamp, LED tail lamp, incandescent front and rear turn signals.
Frame Construction:
Steel, high-tensile strength cradle frame.
Audio System:
Optional accessory audio systems were available, but not standard on all 2008 FXDL models. The platform was designed to accommodate aftermarket installations.
ABS:
Anti-lock Braking System (ABS) was an optional feature for this model year.
Diagnostic Ports:
Features a diagnostic connector for electronic diagnostics and tuning (e.g., for ECU flashing with tools like Harley-Davidson's Digital Technician).
Initial Service:
Typically at 1,000 miles (1,600 km) for first service (oil change, filter, inspection).
Regular Oil Change:
Every 5,000 miles (8,000 km) or 6 months, whichever comes first.
Belt Tension Check:
Check belt tension every 2,500 miles (4,000 km) or annually.
Brake Fluid Flush:
Every 2 years, regardless of mileage.
Engine Oil Viscosity:
20W-50 Synthetic
Transmission Primary Fluid:
Harley-Davidson Formula+ Transmission & Primary Chaincase Lubricant
Brake Fluid:
DOT 4 (ensure compliance with specific Harley-Davidson recommendations)
Fork Oil:
Harley-Davidson Suspension Oil Type 'E' or equivalent (check manual for specific grade)
Twin Cam Cam Chain Tensioner:
Early Twin Cam models (pre-2007) had hydraulic tensioners that could wear prematurely. 2007+ models use upgraded tensioners but still warrant inspection.
Crankshaft Position Sensor:
Can sometimes fail, leading to starting issues or stalling.
Battery Charging System:
Stator or regulator/rectifier failures can occur over time, affecting battery charging.
Fuel Pump Module:
In-tank fuel pump modules can be a point of failure.
Manufacturer:
Harley-Davidson Motor Company
Founding:
Founded in 1903, Milwaukee, Wisconsin.
Dyna Introduction:
The Dyna line was introduced in 1991 as a successor to the Sportster-based FXR models, featuring a larger displacement engine and distinct styling.
Twin Cam Introduction:
The Twin Cam engine platform debuted in 1999, and the Twin Cam 96 became a staple for the Dyna line in 2007.
Low Rider History:
The Low Rider model has been a consistent offering in Harley-Davidson's lineup, known for its comfort-oriented ergonomics and iconic styling.
Production Years For Fx Dl:
The FXDL Dyna Low Rider has been in continuous production since its introduction, with significant updates coinciding with platform changes.
Model Recognition:
The Harley-Davidson Dyna platform, including the Low Rider, has consistently been recognized for its classic styling and powerful V-twin performance by motorcycle enthusiasts and publications.
Reliability Perception:
Generally considered reliable with proper maintenance, though specific components can require attention as outlined in maintenance and known issues.
Emissions Compliance:
Compliant with US EPA and California Air Resources Board (CARB) emissions standards for its model year.