Market Segment:
Premium Long-Distance Touring Motorcycle
Key Competitors:
Indian Chief, Honda Gold Wing, Yamaha Royal Star Venture
Touring Features:
Large fairings, saddlebags, comfortable seating for rider and passenger, often equipped with audio systems and cruise control.
Engine Philosophy:
Harley-Davidson's iconic V-twin engine, known for its distinctive sound, torque delivery, and rider experience.
Value:
Essential resource for owners and technicians to maintain, diagnose, and repair 2004 Harley-Davidson Touring models, ensuring longevity and optimal performance.
Engine:
V-Twin (Twin Cam 88, Twin Cam 96 variants likely included for 2004 models, with focus on 88)
Fuel System:
Carbureted (CV Carburetor) and Electronic Fuel Injection (EFI) systems
Ignition System:
Electronic Ignition, Coil, Spark Plugs
Transmission:
5-speed Cruise Drive Transmission
Clutch:
Primary Drive, Clutch Assembly, Actuation
Brakes:
Hydraulic Disc Brakes (Front and Rear), Calipers, Master Cylinders, Hoses
Suspension:
Front Forks (Telescopic), Rear Shock Absorbers, Swingarm
Electrical System:
Battery, Charging System (Stator, Regulator/Rectifier), Lighting, Horn, Starter Motor, Wiring Diagrams
Cooling System:
Air-Cooled Engine Design, Oil Cooler (if equipped)
Exhaust System:
Exhaust Pipes, Mufflers, Heat Shields
Frame And Bodywork:
Frame, Fairings, Saddlebags, Tour-Pak, Fenders, Seat
Wheels And Tires:
Wheel Bearings, Tire Sizes, Inflation Pressures
Control Systems:
Handlebars, Levers, Cables, Foot Controls
Diagnostics:
Troubleshooting guides, diagnostic fault codes (if applicable to EFI models)
Scheduled Maintenance:
Oil Changes, Filter Replacements, Spark Plug Service, Belt Inspection/Tensioning, Brake Fluid Flush
Engine Overhaul:
Top End Rebuild (Cylinder Head, Piston), Bottom End Rebuild (Crankshaft, Connecting Rods), Camshaft Installation
Transmission Repair:
Gear Set Service, Clutch Pack Replacement, Shifter Mechanism Repair
Brake System Service:
Brake Pad Replacement, Rotor Service, Bleeding Procedure, Master Cylinder Rebuild
Suspension Service:
Fork Seal Replacement, Fork Oil Change, Rear Shock Replacement
Electrical Troubleshooting:
Wiring Harness Repair, Component Testing, Charging System Diagnosis
Fuel System Maintenance:
Carburetor Cleaning and Adjustment, Fuel Injector Service, Fuel Pump Testing
Bodywork Repair:
Fairing Repair, Saddlebag Mounting, Tour-Pak Installation
Wheel And Tire Service:
Tire Mounting and Balancing, Wheel Bearing Replacement
Specifications Data:
Torque values, clearances, timing specifications
Depth:
Comprehensive: Covers routine maintenance to complete engine and transmission rebuilds, including detailed diagnostic procedures and electrical system schematics.
Engine Type:
Air-cooled, 45-degree V-twin, Pushrod OHV, 4 valves per cylinder (2 per head)
Engine Displacement:
1450cc (88 cubic inches)
Bore X Stroke:
3.75 in. x 4.00 in. (95.25 mm x 101.6 mm)
Compression Ratio:
8.9:1 (typical for Twin Cam 88)
Horsepower:
Approx. 65-70 HP (at crankshaft, varies slightly by model and tuning)
Torque:
Approx. 86 ft-lbs (at crankshaft, ~2800 RPM, varies slightly)
Fuel Delivery:
Keihin CV 40mm Carburetor (for carbureted models) or Delphi Electronic Fuel Injection (EFI)
Fuel Type:
Unleaded Gasoline, 91 Octane Minimum Recommended
Oil Capacity:
Approx. 4.0 US quarts (3.8 liters) with filter change
Oil Type:
Harley-Davidson Genuine V-Twin 20W-50 or equivalent API SG rated oil
Type:
5-speed Constant Mesh, Sequential Synchromesh
Gear Ratios:
1st: 9.312, 2nd: 6.471, 3rd: 4.786, 4th: 3.804, 5th: 3.115 (Typical for Twin Cam 88 5-speed)
Primary Drive:
Duplex chain, 34/46 teeth (2.086:1 ratio)
Final Drive:
Belt Drive, 32/66 teeth (2.0625:1 ratio)
Clutch Type:
Multi-plate, wet clutch, cable-actuated
Transmission Fluid Type:
Harley-Davidson Formula + Transmission & Primary Chaincase Lubricant (or equivalent)
Transmission Fluid Capacity:
Approx. 20-24 US fl oz (0.6 - 0.7 L)
Length:
Refer to specific model (e.g., FLHTC, FLHTCU) - typically around 98-101 inches (2489-2565 mm)
Width:
Refer to specific model - typically around 38-40 inches (965-1016 mm)
Height:
Refer to specific model - typically around 55-60 inches (1397-1524 mm)
Dry Weight:
Refer to specific model - typically around 750-850 lbs (340-385 kg)
Gvwr:
Refer to specific model - typically around 1360 lbs (617 kg)
Payload Capacity:
Refer to specific model - typically around 400-450 lbs (181-204 kg)
Saddlebag Capacity:
Integrated hard saddlebags, capacity varies by model but significant for touring.
Tour Pak Capacity:
Optional or standard depending on model (e.g., FLHTCU), adds significant lockable storage.
Safety Certification:
N/A (Motorcycles are not rated by organizations like NHTSA in the same way as cars).
Braking System:
Linked or unlinked (depending on model) hydraulic disc brakes front and rear for reliable stopping power.
Lighting:
Halogen headlight, dual rear taillights, front and rear turn signals, brake light integrated into taillight/tour-pak.
Chassis Stability:
Heavyweight chassis and long wheelbase contribute to stable handling at speed.
Ergonomics:
Designed for rider comfort over long distances, reducing fatigue.
Audio System:
Many 2004 Touring models featured integrated AM/FM/WB radios with CD players and CB/Intercom systems, often with handlebar-mounted controls.
Display:
Analog gauges for speedometer, tachometer, fuel, oil pressure, and voltage, with LCD information screens.
Cruise Control:
Electronic cruise control was a common feature on higher-trim Touring models for effortless highway cruising.
Diagnostic Ports:
EFI models will have diagnostic ports for connecting specialized Harley-Davidson diagnostic tools for fault code retrieval and data analysis.
Initial Service:
1000 mile (1600 km) break-in service recommended.
Regular Oil Change:
Every 5000 miles (8000 km) or 6 months, whichever comes first.
Transmission Fluid Change:
Every 10,000 miles (16,000 km) or 12 months.
Primary Chaincase Fluid Change:
Every 10,000 miles (16,000 km) or 12 months.
Spark Plug Replacement:
Every 10,000 miles (16,000 km) or as needed based on inspection.
Drive Belt Inspection:
Inspect tension and condition every 5000 miles (8000 km); replacement interval varies greatly with riding conditions but typically 30,000-50,000 miles.
Engine Oil Viscosity:
20W-50
Brake Fluid:
DOT 4 Hydraulic Fluid
Twin Cam Oil Consumption:
Some Twin Cam 88 engines, particularly early ones, could experience higher-than-average oil consumption due to valve guide wear. The manual will detail checks and potential remedies.
Cam Chain Tensioner Wear:
Hydraulic cam chain tensioners can wear over time, potentially leading to noise or premature wear. The manual will cover inspection and replacement procedures for these units.
Fuel Line Connectors:
Some early EFI models had issues with quick-disconnect fuel line fittings. The manual will provide guidance on proper installation and maintenance.
Heritage:
Harley-Davidson, founded in 1903, is an iconic American motorcycle manufacturer with a rich history in building V-twin motorcycles.
Touring Lineage:
The Touring line evolved from earlier large Harley-Davidson cruisers, with the 'Touring' designation becoming prominent as these models were specifically engineered for long-distance travel.
Twin Cam Introduction:
The Twin Cam 88 engine, introduced in 1999, was a significant update for Harley-Davidson's V-twin lineup, offering improved performance and reliability over the Evolution engine.
Manufacturing Location:
Milwaukee, Wisconsin, USA (primary assembly)
2004 Significance:
2004 marked a continuation of the Twin Cam 88 platform in the Touring line, with various sub-models offering different levels of comfort and features.