🏷️ Basic Information

Make:

Harley-Davidson

Model:

FLHTCUI Ultra Classic Electra Glide

Year:

2006

Model Code:

FLHTCUI

Family:

Touring

Chassis Type:

Softail

👋 Introduction

Category:

Full-dress touring motorcycle

Target Audience:

Long-distance touring riders, enthusiasts seeking premium comfort and features.

Competitors:

Honda Gold Wing, Indian Roadmaster, Victory Vision.

Premium Touring:

Flagship touring model with extensive comfort and convenience features for long-distance travel.

Comfort Features:

Full fairing with fairing lowers, large windscreen, comfortable seating for rider and passenger, ample luggage capacity (saddlebags and tour pak).

📋 Manual Details

Covered Models:

2006 Harley-Davidson FLHTCUI Ultra Classic Electra Glide

Page Count:

Approximately 800+

Manual Type:

Factory Service Repair Manual

Language:

English

Format:

Digital (PDF)

📖 Manual Coverage

Engine:

Complete engine disassembly, assembly, inspection, and repair procedures for the Twin Cam 88B engine.

Fuel System:

Fuel injection system (EFI), fuel pump, fuel filter, fuel tank, and throttle body.

Ignition System:

Ignition module, spark plugs, ignition coils, and related wiring.

Transmission:

5-speed Cruise Drive transmission, clutch, primary drive, and final drive.

Brakes:

Front and rear brake systems, including hydraulic lines, calipers, master cylinders, and brake fluid specifications.

Suspension:

Front fork (41.3mm telescopic), rear shock absorbers, and related adjustments.

Electrical System:

Complete electrical system, including battery, charging system, lighting, starter, horn, instrumentation, and accessory circuits.

Body Chassis:

Frame, fairing, saddlebags, tour pak, seat, handlebars, and related body components.

Wheels Tires:

Wheel specifications, bearing maintenance, and tire pressure recommendations.

Heating Cooling:

Engine cooling system (air-cooled), but includes HVAC system for cabin comfort.

Diagnostics:

Troubleshooting guides, diagnostic trouble codes (DTCs), and diagnostic procedures for various systems.

Routine Maintenance:

Oil changes, filter replacements, spark plug replacement, lubrication, and general inspection procedures.

Major Repairs:

Engine rebuild, transmission overhaul, clutch replacement, and suspension component replacement.

Troubleshooting:

Step-by-step guidance for diagnosing and resolving common and uncommon issues.

Electrical Troubleshooting:

Wiring diagrams, component testing, and fault finding for electrical circuits.

Component Replacement:

Detailed instructions for replacing virtually every serviceable component on the motorcycle.

Specifications:

Torque values, clearances, fluid capacities, and other critical specifications.

Depth:

Comprehensive, covering everything from basic rider maintenance to complete engine and transmission rebuilds.

Diagnostic Capabilities:

Advanced diagnostic procedures, including use of Harley-Davidson diagnostic tools (where applicable to the 2006 model).

Diagrams Illustrations:

Includes detailed diagrams, exploded views, and illustrations to clarify procedures.

📊 Manual Specifications

File Format:

PDF

Searchability:

Fully searchable text for quick access to information.

Print Quality:

High-resolution, suitable for printing individual pages or the entire manual.

Binding Type:

N/A (Digital Format)

Paper Type:

N/A (Digital Format)

⚙️ Engine Specifications

Engine Type:

Air-cooled, Twin Cam 88B V-twin

Displacement:

1450cc (88 cubic inches)

Bore X Stroke:

3.75 in. x 4.00 in. (95.25 mm x 101.6 mm)

Compression Ratio:

8.8:1

Valvetrain:

Overhead valves (OHV), 2 valves per cylinder

Horsepower:

Estimated 65-70 HP (at crankshaft, figures vary)

Torque:

Estimated 85-90 lb-ft (at crankshaft, figures vary)

Fuel Delivery:

Electronic Sequential Port Fuel Injection (ESPFI)

Fuel Type:

Unleaded gasoline, minimum 87 octane

Oil Type Capacity:

Requires Harley-Davidson SYN3 or compatible motorcycle synthetic oil; capacity approx. 4 US quarts (3.8 liters) with filter change.

🔧 Transmission

Transmission Type:

5-speed constant mesh, helical gears

Gear Ratios:

1st: 9.312, 2nd: 6.790, 3rd: 4.757, 4th: 3.750, 5th: 3.150 (Subject to variation, refer to manual for exact ratios)

Clutch Type:

Clutch, wet, multi-plate, compensator and primary drive system.

Final Drive:

Cruise Drive 6-speed transmission (Note: The product name states Softail FLHTCUI, but the 2006 FLHTCUI is a Touring model with a 6-speed transmission. The 'Softail' designation in the product name might be an error. The manual covers the correct FLHTCUI model).

Transmission Fluid:

Harley-Davidson Formula+ Transmission Oil or equivalent; capacity approx. 2.5 US quarts (2.4 liters).

📐 Dimensions

Length:

102.2 in. (2596 mm)

Width:

38.0 in. (965 mm)

Height:

54.5 in. (1384 mm)

Wheelbase:

63.5 in. (1613 mm)

Dry Weight:

Approx. 822 lbs (373 kg)

Gross Vehicle Weight Rating:

Approx. 1360 lbs (617 kg)

Saddlebag Capacity:

Approx. 2.2 cu ft per saddlebag

Tour Pak Capacity:

Approx. 2.5 cu ft

Fuel Tank Capacity:

5.0 US gallons (18.9 L)

🛡️ Safety Features

Crash Test Ratings:

N/A (Motorcycles are not subject to the same crash testing standards as passenger cars)

Braking System:

Integrated hydraulic disc brakes front and rear, dual front discs.

Lighting:

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

Chassis Design:

Robust steel frame for stability.

Cruise Control:

Standard electronic cruise control for highway stability and reduced rider fatigue.

💡 Technology Features

Audio System:

Integrated AM/FM/WB radio with CB/Intercom, CD player, and passenger audio controls.

Speakers:

Fairing-mounted speakers and rear tour pak speakers.

Cruise Control:

Electronic cruise control.

Cb Intercom:

Integrated CB radio and intercom system for communication.

🔧 Maintenance

Initial Service:

First service typically at 1,000 miles (1,600 km).

Routine Oil Change:

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

Transmission Oil Change:

Every 10,000 miles (16,000 km) or annually.

Primary Chain Case Oil Change:

Every 10,000 miles (16,000 km) or annually.

Spark Plug Replacement:

Typically every 20,000 miles (32,000 km), refer to manual for specific plug type and gap.

Engine Oil:

Harley-Davidson SYN3 or equivalent SAE 20W-50 motorcycle synthetic oil.

Transmission Fluid:

Harley-Davidson Formula+ Transmission Lubricant or equivalent.

Primary Chain Case Fluid:

Harley-Davidson Formula+ Transmission Lubricant or equivalent.

Brake Fluid:

DOT 4, Harley-Davidson Premium Brake Fluid or equivalent.

Cam Chain Tensioners:

Early Twin Cam models (including some 2006 engines) can experience wear on the cam chain tensioners, potentially leading to noise or damage. The manual will guide inspection and replacement.

Crankshaft Position Sensor:

Some models may experience issues with the crankshaft position sensor, affecting engine performance. Troubleshooting is covered.

Air Suspension:

While the 2006 FLHTCUI did not have standard air suspension, some aftermarket systems might be present. Manual focuses on factory components.

📚 Vehicle History

Brand Origin:

Founded in 1903 in Milwaukee, Wisconsin, USA.

Reputation:

Iconic American motorcycle manufacturer known 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 lineup since the late 1960s, evolving significantly over decades.

Twin Cam Era:

The 2006 model features the Twin Cam 88B engine, a significant update from previous Evolution engines, offering more power and refinement.

Ultra Classic Positioning:

The Ultra Classic designation signifies the pinnacle of Harley-Davidson touring comfort, featuring the most comprehensive amenities.

Manufacturing Location:

York, Pennsylvania, USA and Milwaukee, Wisconsin, USA.

Production Years For Model Variant:

The FLHTCUI Ultra Classic Electra Glide was produced in various iterations from the early 2000s through 2006 before receiving further updates.

🏆 Awards & Recognition

Brand Awards:

Harley-Davidson consistently ranks high in customer satisfaction and brand loyalty awards within the motorcycle industry.

Motorcycle Reviews:

The 2006 Ultra Classic Electra Glide was widely praised in contemporary reviews for its comfort, touring capabilities, and extensive features.