Positioning:
Flagship touring motorcycle, representing the pinnacle of Harley-Davidson's comfort and long-distance capabilities for the era
Competitors:
Competed directly with other large-displacement touring motorcycles from manufacturers like Honda (Gold Wing), Kawasaki (Voyager), and Yamaha (Royal Star Venture)
Features:
Large fairing with integrated windshield, comfortable two-up seating, ample storage (saddlebags and tour-pak), cruise control, powerful V-twin engine
Engine Systems:
Twin Cam 88 Engine (carbureted variants), lubrication, cooling, fuel delivery, ignition, starting, charging, exhaust
Transmission Drivetrain:
5-speed Cruise Drive Transmission, primary drive, clutch, final drive
Chassis Suspension:
Frame, front fork (Telescopic), rear suspension (Air Adjustable), swingarm, wheel bearings
Braking System:
Front and rear disc brakes, hydraulic system, caliper maintenance
Electrical System:
Wiring diagrams, lighting, battery, alternator, starter, ignition switch, instrumentation, accessory circuits
Bodywork Fittings:
Fairing, saddlebags, tour-pak, fuel tank, seat, fenders, fairing lowers
Maintenance:
Routine service, oil changes, filter replacement, brake fluid service, tire pressure checks, battery maintenance
Diagnostics Troubleshooting:
Systematic fault finding for engine, electrical, and mechanical issues
Repair Overhaul:
Engine disassembly and reassembly, transmission rebuild, fork service, brake caliper overhaul
Wiring Diagrams:
Detailed electrical schematics for all factory systems
Depth:
Comprehensive from basic maintenance to full engine and transmission rebuilds, including detailed specifications and torque values
PDF Quality:
High-resolution scans, likely searchable text depending on original scan quality
Printability:
Designed for printing, with clear diagrams and text
Binding:
Not Applicable (Digital PDF)
Paper Quality:
Not Applicable (Digital PDF)
Engine Type:
Air-cooled, 45-degree V-twin, OHV, 2 valves per cylinder
Engine Displacement:
1450 cc (88 cubic inches)
Bore X Stroke:
3.75 in. x 4.00 in. (95.25 mm x 101.6 mm)
Horsepower:
Approximately 65-70 HP (est. at crankshaft)
Torque:
Approximately 85-90 lb-ft (est. at crankshaft)
Fuel Delivery:
Carburetor (likely Keihin CV 40mm)
Fuel Type:
Unleaded gasoline, minimum 87 octane
Oil Type:
Harley-Davidson 20W-50 or equivalent V-twin motorcycle oil (API SG or higher)
Oil Capacity:
3.9 US qt. (3.7 L) with filter change
Transmission Type:
5-speed constant mesh, helical gears
Gear Ratios:
1st: 9.315, 2nd: 6.587, 3rd: 4.773, 4th: 3.751, 5th: 2.875 (Illustrative, specific ratios may vary slightly)
Clutch Type:
Wet, multi-plate, diaphragm spring
Primary Drive:
Duplex chain, 34/46 tooth, ratio 1.353
Final Drive:
Belt drive, 32/66 tooth, ratio 2.0625
Transmission Oil Type:
Harley-Davidson Formula + Transmission Oil or equivalent SAE 50 (API GL-4)
Transmission Oil Capacity:
24 US fl oz. (0.71 L)
Crash Testing:
Motorcycles are not subject to the same federal crash testing standards as automobiles; safety features focus on design and rider control.
Braking System:
Dual disc front brakes, single disc rear brake, linked braking system not standard
Suspension:
Air-adjustable rear suspension for load balancing and ride comfort
Lighting:
Halogen headlight, integrated front and rear turn signals, brake light
Chassis Design:
Sturdy steel frame designed for stability at highway speeds
Initial Service:
1000 miles (1600 km) or 6 months
Subsequent Engine Oil Filter:
Every 5000 miles (8000 km) or 12 months, whichever comes first
Subsequent Transmission Oil:
Every 10,000 miles (16,000 km) or 24 months
Subsequent Primary Chain Case Oil:
Every 5000 miles (8000 km) or 12 months
Spark Plug Replacement:
Every 10,000 miles (16,000 km)
Brake Fluid Type:
DOT 4 Hydraulic Brake Fluid (non-silicone based)
Rear Suspension Air Pressure:
Refer to manual for recommended pressure based on load and rider preference (typically 0-15 PSI)
Common Wear Items:
Clutch plates, wheel bearings, front fork seals, rear shock absorber seals, belt drive wear
Electrical Gremlins:
Wiring harness chafing, connector issues, battery charging system (regulator/stator) can be prone to failure over time
Engine Ticking:
Potential for lifter tick, especially when cold or if oil levels are low. Pushrod adjustment may be required.
Heritage:
Harley-Davidson is an iconic American motorcycle manufacturer with a rich history dating back to 1903, renowned for its V-twin engines and cruiser/touring motorcycles.
Electra Glide Lineage:
The Electra Glide nameplate has been a cornerstone of Harley-Davidson's touring line since the 1960s, evolving significantly in technology and comfort.
Twin Cam Era:
The 2004 model year falls within the Twin Cam 88 era, a significant powertrain upgrade from previous Evolution engines, offering more torque and improved reliability.
Manufacturing Location:
York, Pennsylvania, USA (primary assembly)
