Vehicle Segment:
Full-dress touring motorcycle, flagship model for Harley-Davidson.
Key Competitors 2004:
Honda Gold Wing, Kawasaki Vulcan Voyager, Indian Chief, BMW R1200LT.
Touring Capability:
Designed for long-distance comfort and luggage carrying capacity, featuring large fairings, saddlebags, and a tour-pak.
Engine Performance:
Torquey V-twin engine providing strong acceleration and comfortable cruising.
Comfort And Ergonomics:
Spacious rider and passenger seating, floorboards, ample wind protection, and rider amenities.
Technology Integration:
Early integration of electronic fuel injection, cruise control, and often an audio system.
Engine System:
Complete disassembly, inspection, overhaul, and reassembly of the Twin Cam 88 engine, including cylinder heads, pistons, crankshaft, camshafts, and timing.
Fuel System:
Fuel injection system (EFI) diagnostics, component testing (injectors, fuel pump, regulator), throttle body, sensors (MAP, IAT, O2).
Ignition System:
Ignition module, spark plugs, ignition coils, timing adjustments, troubleshooting ignition faults.
Transmission System:
5-speed Cruise Drive transmission disassembly, repair, clutch operation, lubrication, and troubleshooting.
Electrical System:
Wiring diagrams, charging system (alternator, regulator), starting system (starter, solenoid), battery service, lighting, horn, instruments, fuses, relays, and accessory circuits.
Suspension System:
Front fork (telescopic) overhaul, fluid replacement, seal replacement, rear shock absorber service and adjustment.
Brake System:
Front and rear hydraulic brake systems, caliper overhaul, master cylinder service, brake fluid replacement, bleeding procedures, rotor and pad inspection.
Chassis And Frame:
Frame inspection, swingarm service, wheel bearings, steering head bearings, and alignment.
Bodywork And Fairings:
Fairing removal and installation, saddlebag service, tour-pak mounting, body panel repairs, and cosmetic component service.
Cruise Control:
Service and troubleshooting of the electronic cruise control system.
Audio System:
Troubleshooting and basic service for the integrated audio system (if applicable).
Routine Maintenance:
Oil changes, filter replacements, air filter service, spark plug replacement, lubrication points, brake fluid checks.
Troubleshooting Guides:
Systematic diagnostic procedures for common issues, fault code interpretation (if applicable), and symptom-based troubleshooting.
Rebuilding And Overhaul:
Detailed procedures for engine, transmission, forks, and brake system rebuilds.
Component Replacement:
Step-by-step instructions for replacing wear items and major components.
Special Tools:
Identification and usage of specialized tools required for specific repairs and adjustments.
Diagnostic Capabilities:
Advanced diagnostics for EFI systems, sensor readings, and electrical component testing.
Repair Scope:
Full range of repairs from minor adjustments to complete engine and transmission rebuilds.
Precision Measurements:
Clear specifications for clearances, tolerances, torque values, and other critical measurements.
Engine Family:
Harley-Davidson Twin Cam 88
Displacement:
1450 cc (88 cubic inches)
Bore X Stroke:
3.75 in. x 4.00 in. (95.25 mm x 101.6 mm)
Valvetrain:
Overhead valves (OHV), 2 valves per cylinder
Cooling System:
Air-cooled
Horsepower Estimated:
Approximately 65-70 HP (at crank)
Torque Estimated:
Approximately 85-90 lb-ft (at crank)
Fuel Delivery:
Electronic Sequential Port Fuel Injection (ESPFI)
Fuel Type:
Unleaded gasoline, 91 octane (R+M)/2 recommended
Fuel Tank Capacity:
5.0 US gallons (18.9 L)
Overall Length:
Approx. 98.7 inches (2507 mm)
Overall Width:
Approx. 37.0 inches (940 mm)
Overall Height:
Approx. 56.5 inches (1435 mm)
Wheelbase:
Approx. 63.5 inches (1613 mm)
Ground Clearance:
Approx. 5.1 inches (130 mm)
Dry Weight:
Approx. 800 lbs (363 kg)
Gvwr:
Approx. 1360 lbs (617 kg)
Payload Capacity:
Approx. 560 lbs (254 kg)
Saddlebag Capacity:
Integrated, approximately 2.2 cu ft total
Tour Pak Capacity:
Integrated, approximately 2.5 cu ft
Crash Test Ratings:
Motorcycles are typically not subject to the same formal crash test ratings as automobiles.
Braking System:
Dual-disc front brakes, single disc rear brake with hydraulic actuation.
Lighting:
Halogen headlight, auxiliary passing lamps, LED tail/stop light, amber turn signals.
Frame Construction:
Steel, cradle frame providing structural integrity.
Fairing Wind Protection:
Large Batwing fairing offers significant rider and passenger protection from wind and elements.
Audio System:
AM/FM Stereo radio with cassette player and CB/Intercom system (depending on specific trim and options).
Display Technology:
Analog gauges for speed, tachometer, oil pressure, voltage, and fuel. Small LCD for odometer and trip meters.
Cruise Control:
Electronic cruise control system for highway comfort.
Cb Radio Intercom:
Integrated CB radio and intercom system for rider-to-passenger and external communication.
OBD Ii Equivalent:
Harley-Davidson uses its own diagnostic interface (e.g., for the Delphi-based EFI system) which requires specific tools for full diagnostic access.
Engine Oil Change:
Every 5,000 miles (8,000 km) or annually, whichever comes first.
Transmission Fluid Change:
Every 10,000 miles (16,000 km).
Primary Chaincase Fluid Change:
Every 10,000 miles (16,000 km).
Air Filter Cleaning:
Inspect every 5,000 miles (8,000 km), clean or replace as needed.
Spark Plug Replacement:
Every 10,000 miles (16,000 km).
Brake Fluid Flush And Replace:
Every 2 years.
Engine Oil Type:
Harley-Davidson SYN3 Synthetic Motorcycle Oil (or equivalent SAE 20W-50 API SG or higher)
Engine Oil Capacity:
Approx. 4.0 US quarts (3.8 L) with filter change.
Transmission Fluid Type:
Harley-Davidson Formula+ Transmission & Primary Chaincase Lubricant
Transmission Fluid Capacity:
Approx. 24 US fluid ounces (0.71 L)
Primary Chaincase Fluid Type:
Harley-Davidson Formula+ Transmission & Primary Chaincase Lubricant
Primary Chaincase Fluid Capacity:
Approx. 26 US fluid ounces (0.77 L)
Front Fork Oil Type:
Harley-Davidson Type E or 10W Fork Oil
Front Fork Oil Capacity:
Approx. 11.3 US fl oz (335 ml) per fork leg.
Engine Oil Leaks:
Potential for leaks at primary cover, derby cover, and rocker boxes due to aging gaskets.
Cam Chain Tensioner Wear:
Early Twin Cam 88 models are known for hydraulic cam chain tensioner wear, leading to noise and potential damage. Upgrade kits are available.
Rear Cylinder Overheating:
Can occur in hot weather or heavy traffic due to air cooling. Proper maintenance and synthetic oil can mitigate this.
Cruise Control Actuator Failure:
The electronic cruise control actuator can sometimes fail, requiring replacement.
Manufacturer:
Harley-Davidson Motor Company, founded in 1903.
Core Philosophy:
American V-twin motorcycles, emphasis on rider experience, customization, and community.
Electra Glide Lineage:
The Electra Glide series dates back to 1965, evolving from the Panhead and Shovelhead eras to the current Twin Cam platform.
Twin Cam Introduction:
The Twin Cam 88 engine was introduced in 1999, offering improved performance and reliability over its predecessors.
Manufacturing Location:
United States (York, Pennsylvania and Milwaukee, Wisconsin)
Key Production Years For This Variant:
2000-2006 (Twin Cam 88 EFI models)