The 2006 Ultra Classic Electra Glide represents the pinnacle of American touring motorcycles, engineered for unparalleled comfort and capability on long-distance journeys. This flagship model, powered by the robust Twin Cam 96 V-twin engine, features a comprehensive suite of amenities including spacious fairings, extensive luggage capacity, and advanced audio and communication systems. Its design prioritizes rider and passenger comfort, making it an iconic choice for those who embrace the open road. The FLHTCUI embodies a heritage of quality craftsmanship and enduring performance, offering a truly premium touring experience. This comprehensive factory service manual provides detailed instructions for the maintenance, diagnosis, and repair of the 2006 Ultra Classic Electra Glide. Covering all major systems from the engine and transmission to the electrical and chassis components, this manual offers factory-level technical information. It includes essential procedures such as scheduled maintenance, component removal and installation, troubleshooting guides, and detailed wiring diagrams. This resource is designed to empower owners, technicians, and mechanics with the knowledge necessary to keep this exceptional touring motorcycle in optimal condition. 🏷️ Basic Information Identification Make: Harley-Davidson Model: FLHTCUI Ultra Classic Electra Glide Year: 2006 Codes Vin Decoder Prefix: 1HD1 👋 Introduction Market Position Positioning: Flagship touring motorcycle, offering maximum comfort, features, and range for long-distance travel. Competitive Analysis Competitors: Honda Gold Wing, Indian Roadmaster, Yamaha Star Venture, BMW K1600 GTL. Key Features Features: Large fairings, ample luggage capacity (saddlebags, tour-pak), comfortable seating for rider and passenger, advanced touring amenities, V-twin engine. Purpose Manual Purpose: To provide comprehensive guidance for the diagnosis, maintenance, and repair of the 2006 Harley-Davidson FLHTCUI Ultra Classic Electra Glide. 📋 Manual Details Coverage Areas Primary Coverage: Factory Service Repair Scope: Complete Motorcycle Page Count Estimated Pages: Hundreds (Specific count not provided, but implies comprehensive) Manual Type Type: Factory Service Manual (FSM) Language Language: English Format Format: Downloadable PDF 📖 Manual Coverage Systems Covered Engine: Fuel Injection, Ignition, Lubrication, Cooling, Mechanical Components, Diagnosis Transmission: Clutch, Gearbox, Final Drive, Maintenance, Repair, Troubleshooting Electrical System: Battery, Charging System, Ignition System, Lighting, Instruments, Audio System, Wiring Diagrams, ECM/ECU, Sensors Chassis And Suspension: Frame, Front Fork, Rear Suspension, Swingarm, Bearings, Wheel Alignment Braking System: Front and Rear Brakes, Hydraulic System, ABS (if equipped), Service Procedures Fuel System: Fuel Tank, Fuel Pump, Injectors, Fuel Lines, Evaporative Emission Control (EVAP) Exhaust System: Pipes, Mufflers, Catalytic Converter (if equipped), Mounting Bodywork And Trim: Fairing, Saddlebags, Tour-Pak, Seat, Fairing Mounts, Body Panel Removal and Installation Controls: Handlebars, Levers, Pedals, Cables, Throttle Control Procedures Included Maintenance: Scheduled Service, Fluid Changes, Filter Replacements, Lubrication Points, Inspections Diagnostics: Troubleshooting Guides, Symptom-Based Diagnosis, Diagnostic Trouble Codes (DTCs), Harley-Davidson Specific Diagnostic Tools Repair: Component Removal and Installation, Overhaul Procedures, Adjustment Specifications, Reassembly Instructions Calibration And Adjustment: Throttle Position Sensor (TPS) Calibration, Idle Speed Adjustment, Clutch Adjustment Wiring And Schematics: Complete Color Wiring Diagrams, Component Location Charts Technical Depth Depth: Comprehensive Engine Rebuild, Full Electrical System Diagnosis, Drivetrain Overhaul, Suspension and Brake Service Detail Level: Factory-level detail, suitable for professional technicians and advanced DIY mechanics 📊 Manual Specifications File Format Format: PDF Searchability: Text-searchable (assumed for standard factory manuals) Print Quality Quality: High-resolution, suitable for printing individual pages or sections Binding Type Binding Type: N/A (Downloadable PDF) Paper Type Paper Type: N/A (Downloadable PDF) ⚙️ Engine Specifications Primary Engine Engine Family: Harley-Davidson Twin Cam 96 V-Twin Displacement: 96 cubic inches (1584cc) Bore X Stroke: 3.75 in x 4.38 in (95.25 mm x 111.25 mm) Compression Ratio: 8.9:1 Valve Train: Overhead Valve (OHV), 4 valves per cylinder (2 per head), pushrod actuated. Cooling System: Air-cooled Performance Horsepower: Approx. 70-75 HP (Manufacturer not explicitly stating, typical for Twin Cam 96) Torque: Approx. 88-92 ft-lbs @ 3500 RPM (Manufacturer not explicitly stating, typical for Twin Cam 96) Fuel System Fuel Delivery: Electronic Sequential Port Fuel Injection (ESPFI) Fuel Type: Unleaded gasoline, minimum 91 octane (RON+MON)/91 AKI Lubrication System Oil Capacity: 4.0 US qt (3.8 L) with filter change Oil Type: Harley-Davidson SYN3 (Synthetic) or equivalent V-Twin specific engine oil meeting Harley-Davidson specifications. 🔧 Transmission Standard Type: 6-speed Cruise Drive Manual Transmission Optional Transmission Type: N/A (Standard 6-speed manual) Features Clutch: Hydraulically actuated, multi-plate wet clutch Final Drive: Belt Drive Fluid Specifications Transmission Oil Type: Harley-Davidson Formula+ (GL-4 or GL-5 specification for gears) Fluid Capacities Transmission Oil Capacity: 24 US fluid oz (0.7 L) 📐 Dimensions Exterior Length: 103.5 in (2629 mm) Width: 39.5 in (1003 mm) Height: 62.0 in (1575 mm) Wheelbase: 63.5 in (1612 mm) Ground Clearance: 5.1 in (130 mm) Weights Dry Weight: 832 lbs (377 kg) Gross Vehicle Weight Rating: N/A (Typically not specified for motorcycles, implied by load capacity) Cargo Saddlebag Capacity: Approx. 2.2 cu ft (63 L) total Tour Pak Capacity: Approx. 2.4 cu ft (68 L) 🛡️ Safety Features Ratings Crash Test Ratings: N/A (Motorcycles are not typically rated by organizations like NHTSA or IIHS) Active Features...