🏷️ Basic Information

Make:

Harley-Davidson

Model:

Softail FLHTCUI Ultra Classic Electra Glide

Year:

2006

Chassis Code:

FLHTCUI

Trim Level:

Ultra Classic Electra Glide

👋 Introduction

Positioning:

The 2006 Harley-Davidson FLHTCUI Ultra Classic Electra Glide represents the pinnacle of Harley-Davidson's touring motorcycles for that year, designed for long-distance comfort and performance.

Competitors:

Competed against other large touring motorcycles such as Honda Gold Wing, Indian Roadmaster (though less prevalent in this specific year), and various custom touring bikes.

Features:

Full fairings, comfortable seating for rider and passenger, ample luggage capacity (saddlebags, tour-pak), cruise control, advanced infotainment system, and the iconic Harley-Davidson V-twin engine.

📋 Manual Details

Manual Type:

Full Service Repair Manual

Language:

English

Format:

Print (likely, as it's a product description for a manual)

Page Count:

Not specified in product description, but typical for a full service manual would be 800-1200 pages.

Coverage Areas:

Comprehensive service and repair

📖 Manual Coverage

Engine Mechanical:

Engine disassembly, assembly, inspection, and repair of all major internal and external components.

Fuel System:

Fuel injection system diagnostics, component testing, cleaning, and calibration.

Ignition System:

Ignition system troubleshooting, coil testing, sensor diagnostics, and timing adjustments.

Electrical System:

Wiring diagrams, component testing, troubleshooting of charging system, lighting, starting system, and accessories.

Transmission:

Clutch operation, gear shifting mechanisms, transmission fluid checks and changes, internal component inspection and repair.

Braking System:

Brake fluid checks, bleeding procedures, caliper and master cylinder service, pad replacement, and rotor inspection.

Suspension System:

Front fork service, rear shock absorber replacement, lubrication, and tuning.

Steering System:

Handlebar, steering head bearing service, and lubrication.

Cooling System:

Not applicable for this model (air-cooled).

Exhaust System:

Exhaust pipe and muffler inspection, gasket replacement, and mounting hardware.

Bodywork And Frame:

Fairing removal and installation, fuel tank service, fender repair, seat assembly, and frame inspection.

Wheels And Tires:

Tire pressure, tread wear inspection, wheel bearing service, and tire replacement.

Lighting And Accessories:

Headlight, taillight, turn signals, auxiliary lighting, radio, and cruise control system service.

Routine Maintenance:

Oil changes, filter replacements, spark plug service, and lubrication intervals.

Troubleshooting:

Diagnostic procedures for common and uncommon problems across all systems.

Component Repair:

Detailed step-by-step instructions for repairing or replacing individual components.

Major Overhauls:

Procedures for complete engine rebuilds, transmission overhauls, and suspension rebuilds.

Diagnostic Testing:

Testing procedures for electronic control modules (ECM), sensors, actuators, and electrical circuits.

Wiring Diagrams:

Complete and detailed wiring schematics for all electrical systems.

Depth:

Comprehensive, covering everything from basic maintenance to full engine rebuilds and advanced diagnostics.

📊 Manual Specifications

File Format:

Typically printed paper, but digital formats like PDF are also common.

Print Quality:

Professional printing, clear diagrams, and legible text.

Binding Type:

Spiral-bound or perfect-bound for durability and ease of use on a workbench.

Paper Type:

Durable, often coated paper to resist grease and workshop elements.

⚙️ Engine Specifications

Engine Type:

Air-cooled, Twin Cam 96 V-Twin

Displacement:

96 cubic inches (1584 cc)

Bore X Stroke:

3.75 in. x 4.38 in. (95.25 mm x 111.25 mm)

Compression Ratio:

8.9:1

Torque:

Approx. 92 ft-lbs (124.7 Nm) @ 3000 RPM

Horsepower:

Not officially published by Harley-Davidson for this model year, but estimated to be in the 65-70 HP range.

Fuel Delivery:

Electronic Sequential Port Fuel Injection (ESPFI)

Fuel Type:

Unleaded gasoline, minimum 87 octane

Oil Type:

Harley-Davidson SYN3 Synthetic (or equivalent API CI-4 Plus, SAE 20W-50)

Oil Capacity:

4.0 US quarts (3.8 liters) with filter change

🔧 Transmission

Type:

6-speed Cruise Drive

Primary Drive:

Chain, 34/46 ratio

Final Drive:

Belt, 32/66 ratio

Clutch:

Hydraulically actuated, 9-plate wet clutch

Transmission Oil Type:

Harley-Davidson Formula + (or equivalent API GL-4, SAE 85W-140)

Transmission Oil Capacity:

2.8 US quarts (2.6 liters)

📐 Dimensions

Length:

103.1 in. (2619 mm)

Width:

38.0 in. (965 mm)

Height:

62.0 in. (1575 mm)

Wheelbase:

63.2 in. (1605 mm)

Ground Clearance:

5.1 in. (130 mm)

Dry Weight:

812 lbs (368.3 kg)

Gross Vehicle Weight Rating (Gvwr):

1360 lbs (617 kg)

Payload Capacity:

548 lbs (248.1 kg)

Fuel Tank Capacity:

5.0 US gallons (18.9 liters)

Oil Tank Capacity:

4.0 US quarts (3.8 liters)

Front Tire:

130/90B16 73H

Rear Tire:

150/80B16 77H

Front Wheel:

Cast Aluminum Lakeshore, 16-inch

Rear Wheel:

Cast Aluminum Lakeshore, 16-inch

🛡️ Safety Features

Crash Test Ratings:

Motorcycles are not typically subject to the same formal crash testing as cars. Safety is based on design and rider input.

Braking:

Hydraulic disc brakes front and rear, linked braking system (optional/market dependent).

Lighting:

Halogen headlight, LED taillight, auxiliary passing lamps, front and rear turn signals.

Frame Design:

Steel cradle frame designed for stability and rider confidence.

Ergonomics:

Comfortable rider position, floorboards, passenger backrest, and armrests for enhanced long-distance safety and comfort.

💡 Technology Features

Audio System:

AM/FM/WB stereo with CD player, CB radio, passenger intercom, and weather band.

Display:

Integrated dashboard display for audio and vehicle information.

Cruise Control:

Electronic cruise control for highway comfort.

Intercom:

Wired intercom system for rider and passenger communication.

🔧 Maintenance

Initial Service:

First service typically at 1,000 miles (1,600 km) for oil change, filter, and inspection.

Regular Oil Change:

Every 5,000 miles (8,000 km) or annually.

Primary Chain Tensioner Inspection:

Inspect at 20,000 miles (32,000 km) and replace if necessary with updated hydraulic tensioner.

Belt Drive Inspection:

Inspect belt tension and condition every 10,000 miles (16,000 km).

Spark Plug Replacement:

Recommended every 15,000-20,000 miles (24,000-32,000 km).

Engine Oil Spec:

Harley-Davidson SYN3 or SAE 20W-50 API CI-4 Plus

Transmission Oil Spec:

Harley-Davidson Formula + or SAE 85W-140 API GL-4

Primary Chain Case Oil Spec:

Harley-Davidson Formula + or SAE 85W-140 API GL-4

Brake Fluid Spec:

DOT 4

Primary Chain Tensioner:

Early Twin Cam models (pre-2007) used a spring-loaded cam chain tensioner that was prone to wear and failure, potentially causing engine damage. The manual will likely detail inspection and the upgrade to the hydraulic tensioner.

Crankshaft Position Sensor:

Can sometimes fail, leading to no-start conditions or intermittent stalling. Troubleshooting procedures would be covered.

Fuel Injector Issues:

Occasional issues with clogged or failing fuel injectors. The manual will provide cleaning and testing procedures.

📚 Vehicle History

Heritage:

Harley-Davidson, founded in 1903, has a long-standing reputation for producing iconic American motorcycles, with the Electra Glide line being a cornerstone of their touring segment since the 1960s.

Evolution Of Electra Glide:

The Electra Glide evolved significantly from its early iterations, adopting fuel injection, larger displacement engines (like the Twin Cam), advanced suspension, and integrated touring amenities to become the 'Ultra Classic' designation.

Manufacturing Location:

USA (primarily York, Pennsylvania and Milwaukee, Wisconsin)

Production Years For Twin Cam 96:

The Twin Cam 96 engine was introduced in 2007 for most models, but the 2006 models were still largely based on the Twin Cam 88, with some transitional models or earlier releases potentially featuring the 96. The FLHTCUI in 2006 specifically featured the Twin Cam 88B, later upgraded to the Twin Cam 96. (Clarification: 2006 models were predominantly Twin Cam 88B. The 'SRM' in the product name might refer to an aftermarket manual supplier.)

🏆 Awards & Recognition

Market Perception:

The Ultra Classic Electra Glide line consistently received positive reviews for its touring capabilities and comfort, making it a benchmark in the luxury touring segment.

Industry Standing:

Considered a class-leading model for long-distance motorcycle touring during its production era.