🏷️ Basic Information

Make:

Harley-Davidson

Model:

FLHTCUL Electra Glide Ultra Low

Year:

2015

Project Name:

Project Rushmore

Model Code:

FLHTCUL

👋 Introduction

Category:

Full-dress touring motorcycle

Target Audience:

Touring riders seeking comfort, luxury, and long-distance capability.

Competitors:

Honda Gold Wing, Indian Roadmaster, Victory Vision Tour

Feature 1:

Project Rushmore enhancements for improved ergonomics and touring comfort.

Feature 2:

Lowered suspension and seat height for enhanced rider accessibility ('Low' designation).

Feature 3:

Powerful Twin Cam 103™ High Output engine with oil cooling.

Feature 4:

Integrated infotainment system with navigation and communication features.

Feature 5:

Large capacity saddlebags and Tour-Pak for extensive luggage storage.

📋 Manual Details

Primary Coverage:

Service, Repair, Overhaul, Diagnostics, Troubleshooting

Secondary Coverage:

Routine Maintenance, Scheduled Service, Component Identification

Estimated Pages:

Hundreds of pages (specific count not provided in description, typical for comprehensive service manuals)

Type:

Service Manual / Workshop Repair Manual

Language:

English

Format:

PDF

📖 Manual Coverage

Engine:

Twin Cam 103™ High Output, Engine disassembly, assembly, tuning, diagnosis

Transmission:

6-speed Cruise Drive, Clutch, Gearbox, Drivetrain, Diagnosis and repair

Fuel System:

Electronic Sequential Port Fuel Injection (ESPFI), Fuel tank, Pump, Injectors, Throttle body

Electrical System:

Ignition, Lighting, Charging system, Battery, ECM, Diagnostics, Wiring diagrams

Braking System:

Antilock Braking System (ABS), Front and Rear brakes, Hydraulic system, Service and bleeding procedures

Suspension System:

Front forks (Telescopic), Rear shock absorbers, Air suspension, Service and adjustment

Chassis Frame:

Frame construction, Swingarm, Headstock, Alignment checks

Bodywork And Trim:

Fairings, Saddlebags, Tour-Pak, Seat, Handlebars, Instrument panel, Removal and installation

Cooling System:

Air-cooled engine, Oil cooler, Oil flow and management

Exhaust System:

Mufflers, Catalytic converters, Lambda sensors, Diagnosis and replacement

Routine Maintenance:

Oil changes, Filter replacement, Tire pressure checks, Chain/belt adjustment (if applicable)

Engine Repair:

Top-end rebuild, Bottom-end rebuild, Piston and cylinder service, Valve adjustment

Transmission Repair:

Clutch adjustment and replacement, Gearbox disassembly and assembly, Bearing replacement

Electrical Troubleshooting:

Diagnostic codes, Fault finding for lighting, ignition, charging, and sensor issues

Brake System Maintenance:

Brake fluid replacement, Bleeding procedure, Pad and rotor inspection and replacement

Suspension Overhaul:

Fork seal replacement, Shock absorber service, Bushing replacement

Fuel System Diagnosis:

Injector cleaning, Fuel pressure testing, Throttle body synchronization

Diagnostic Procedures:

Utilizing Harley-Davidson Diagnostic codes and procedures

Depth:

Comprehensive: Covers basic maintenance to complete engine and transmission rebuilds, advanced diagnostics, and electrical system troubleshooting.

📊 Manual Specifications

Format:

PDF (Portable Document Format)

Searchability:

Likely searchable text-based PDF, allowing for easy keyword searching.

Quality:

Digital PDF, resolution dependent on original scan/creation. Typically sufficient for clear viewing and printing.

Type:

Not Applicable (Digital PDF)

Type:

Not Applicable (Digital PDF)

⚙️ Engine Specifications

Engine Type:

Air-cooled, Twin Cam 103™ High Output

Displacement:

1690 cc (103 cubic inches)

Bore X Stroke:

3.875 in. x 4.375 in. (98.4 mm x 111.1 mm)

Compression Ratio:

9.6:1

Valve Train:

Pushrod-actuated, overhead valves with hydraulic lifters; two valves per cylinder

Horsepower:

Estimated 80-90 HP at rear wheel (stock tune, varies with conditions)

Torque:

Estimated 100-110 ft-lbs at rear wheel (stock tune, varies with conditions)

Fuel Delivery:

Electronic Sequential Port Fuel Injection (ESPFI)

Fuel Type:

Premium unleaded gasoline, minimum 91 octane recommended

Fuel Tank Capacity:

6.0 gallons (22.7 liters)

🔧 Transmission

Type:

6-speed Cruise Drive

Primary Drive:

Patented, pre-lubricated, clutch with direct drive engagement

Final Drive:

Carbon fiber belt, 32/46 ratio

Gear Ratios:

1st: 9.593, 2nd: 6.650, 3rd: 4.949, 4th: 3.834, 5th: 3.175, 6th: 2.790

Clutch:

Hydraulically actuated, 10-plate, wet clutch

Transmission Oil:

Harley-Davidson Formula+ (or equivalent SAE 50 transmission lubricant)

Transmission Oil Capacity:

2.7 US qt (2.5 L)

📐 Dimensions

Length:

100.4 in. (2550 mm)

Seat Height Laden:

25.5 in. (648 mm)

Ground Clearance:

4.7 in. (119 mm)

Rake:

26.0 degrees

Trail:

6.7 in. (170 mm)

Dry Weight:

838 lbs (380 kg)

Weight In Running Order:

877 lbs (398 kg)

Gross Vehicle Weight Rating:

1360 lbs (617 kg)

Saddlebag Capacity:

2.26 cu ft (0.064 cu m)

Tour Pak Capacity:

4.23 cu ft (0.120 cu m)

🛡️ Safety Features

ABS:

Standard Antilock Braking System (ABS)

Braking:

Linked front and rear brakes with ABS

Lighting:

Daymaker LED headlights, auxiliary passing lamps, LED taillight and brake light

Frame:

Steel frame and swingarm designed for stability

Wind Protection:

Batwing fairing with windshield for rider comfort and protection

💡 Technology Features

System Name:

Boom!™ Box 6.5 GT infotainment system

Features:

6.5-inch color touchscreen, AM/FM/Weatherband radio, USB/iPod compatibility, Bluetooth, voice recognition, GPS navigation

Speakers:

Fairing-mounted speakers, optional additional speakers for saddlebags and tour-pak

ABS:

Standard on front and rear brakes

Cruise Control:

Electronic cruise control

Bluetooth:

For audio streaming and hands-free calling

Usb Port:

For device charging and media playback

🔧 Maintenance

First Service:

1,000 miles (1,600 km) or 6 months, whichever comes first. Includes engine oil and filter change, primary chain tension adjustment, and inspection of various components.

Subsequent Service:

Every 5,000 miles (8,000 km) or 12 months for engine oil and filter change. Other services based on mileage or time intervals (e.g., 10,000 miles for spark plugs, brake fluid flush).

Engine Oil:

Harley-Davidson SYN3 (20W-50 Synthetic) or equivalent. Check manual for specific recommendations.

Engine Oil Capacity:

4.0 US qt (3.8 L)

Brake Fluid:

DOT 4

Clutch Fluid:

DOT 4 (if hydraulic clutch)

Fork Oil:

Harley-Davidson Spectro or equivalent (viscosity specified in manual, typically around 5W or 10W)

Cam Chain Tensioners:

Early Twin Cam models (pre-2007) had hydraulic tensioners prone to wear. 2015 models utilize updated, more robust cam chain tensioners.

Crankshaft Runout:

Potential issue on some Twin Cam engines, though less prevalent on later models. Diagnosis is crucial.

Charging System Issues:

Occasional reports of stator or regulator/rectifier failures, often due to heat or electrical overloads. Proper diagnostic procedures are key.

Paint And Finish Durability:

While generally good, some owners report chips or fading on certain paint finishes or chrome components over time, especially with heavy use.

Infotainment System Glitches:

Like many integrated electronic systems, occasional software glitches or unresponsiveness can occur, often resolvable with updates or resets.

📚 Vehicle History

Legacy:

Harley-Davidson has a long-standing heritage in motorcycle manufacturing, particularly in the touring segment.

Electra Glide Lineage:

The Electra Glide line has been a flagship touring model for Harley-Davidson for decades, evolving from basic touring bikes to technologically advanced, comfortable cruisers.

Project Rushmore Impact:

The 2014 model year marked the introduction of 'Project Rushmore,' a significant update that brought aerodynamic improvements, integrated storage, and a new infotainment system, carrying over to the 2015 model.

Flhtcul Introduction:

The 'Ultra Low' variant, FLHTCUL, was introduced to cater to riders seeking a more accessible seat height without compromising the full touring features.

Manufacturing Location:

York, Pennsylvania, USA and Milwaukee, Wisconsin, USA (assembly)

🏆 Awards & Recognition

Brand Acclaim:

Harley-Davidson is consistently recognized for its iconic design, sound, and riding experience.

Model Specific:

While specific awards for the 2015 FLHTCUL might not be easily quantifiable, the Electra Glide platform generally receives positive reviews from motorcycle journalists and riders for its touring capabilities and comfort.