Segment:
Full-size Luxury Touring Motorcycle
Target Audience:
Long-distance touring riders seeking comfort, amenities, and classic Harley-Davidson styling.
Key Competitors:
Indian Roadmaster, Honda Gold Wing, BMW R1250RT.
Differentiation:
Iconic Harley-Davidson V-twin engine, extensive customization options, strong rider community, and classic styling.
Comfort:
Large fairing with windshield, comfortable seating for rider and passenger, adjustable rider backrest, ample storage.
Technology:
Advanced infotainment system with navigation, cruise control, CB/intercom, and premium sound system.
Performance:
Torquey Twin Cam 103 engine, comfortable riding ergonomics, and stable handling for long-distance travel.
Primary Coverage:
Comprehensive service and repair for the 2010 Harley-Davidson FLHTCU Ultra Classic
Diagnostic Coverage:
Troubleshooting procedures, diagnostic trouble codes (DTCs), and repair strategies
Maintenance Coverage:
Scheduled maintenance, routine servicing, and preventative care recommendations
Electrical Coverage:
Detailed wiring diagrams, electrical component testing, and troubleshooting for all systems
Engine Coverage:
Engine assembly, disassembly, component inspection, and rebuilding procedures for the Twin Cam 103
Transmission Coverage:
Six-speed Cruise Drive transmission service, repair, and component identification
Bodywork Coverage:
Fairing removal and installation, body panel repair, and accessory fitting instructions
Suspension Coverage:
Front fork and rear shock absorber service, adjustments, and replacement
Braking System Coverage:
Brake system diagnostics, fluid replacement, pad and rotor service, and ABS troubleshooting
Wheel Tire Coverage:
Wheel bearing service, tire installation, and balancing procedures
Type:
Factory Service Manual (FSM)
Description:
Official Harley-Davidson service repair manual for professional technicians and advanced DIY users.
Primary Language:
English
Digital Format:
PDF (Portable Document Format)
Download Availability:
Instant Download
Powertrain:
Engine (Twin Cam 103), Fuel System (EFI), Ignition System, Exhaust System, Transmission (6-Speed Cruise Drive), Primary Drive, Final Drive
Chassis:
Frame, Front Suspension (Gaucho Fork), Rear Suspension (Air-Adjustable Shocks), Steering, Wheels, Tires, Brakes (ABS)
Electrical:
Battery, Charging System, Ignition System, Lighting System, Instrumentation, Audio System (Advanced Audio System), Security System, Fairing Electrical Components, Wiring Diagrams
Body:
Fairing, Saddlebags, Tour-Pak, Fenders, Fuel Tank, Seat, Handlebars, Controls, Side Stand
Routine Maintenance:
Oil changes, filter replacements, spark plug service, brake fluid flush, tire pressure checks, drive belt adjustment.
Troubleshooting Diagnostics:
Step-by-step diagnostic procedures for common and uncommon issues, fault code interpretation, circuit analysis.
Repair Rebuild:
Engine internal component replacement (pistons, rings, valves), transmission gearset service, brake caliper rebuild, suspension component overhaul.
Installation Adjustment:
Accessory installation, control cable adjustments, clutch and brake lever adjustment, suspension sag adjustment.
Special Tools:
Identification and usage of specialized Harley-Davidson tools required for various service procedures.
Depth:
In-depth coverage for complete overhaul and rebuilds, including torque specifications, clearance measurements, and assembly sequences.
Diagnostics Level:
Advanced electronic diagnostics and troubleshooting, including scan tool usage and data interpretation.
Accuracy:
Factory-level accuracy and detail, mirroring the information provided to authorized Harley-Davidson dealerships.
Engine Type:
Air-cooled, Twin Cam 103™
Displacement:
1690 cc (103 cu. in.)
Bore X Stroke:
3.875 in. x 4.38 in. (98.4 mm x 111.3 mm)
Valvetrain:
Overhead valves (OHV), 2 valves per cylinder, pushrod actuated
Horsepower Estimated:
75 HP @ 5000 RPM (approximate, varies by dyno and tuning)
Torque Peak:
96 ft-lbs @ 3500 RPM (approximate, varies by dyno and tuning)
Fuel Delivery:
Electronic Sequential Port Fuel Injection (ESPFI)
Fuel Type:
Premium Unleaded Gasoline
Fuel Capacity:
6.0 US gallons (22.7 L)
Type:
6-Speed Cruise Drive®
Clutch Type:
Hydraulically actuated, 9-plate, wet clutch
Primary Drive:
Gear drive with integrated chain
Final Drive:
Belt, 29T x 68T
Gear Ratios:
1st: 9.593, 2nd: 6.650, 3rd: 4.934, 4th: 3.810, 5th: 3.135, 6th: 2.790
Transmission Fluid Type:
Harley-Davidson Formula + Transmission & Primary Chaincase Lubricant (or equivalent API GL-5 rated gear oil)
ABS:
Standard (Anti-lock Braking System)
Braking System:
Dual front disc brakes, single rear disc brake, integrated power brake system with ABS.
Cruise Control:
Electronic Cruise Control
Lighting:
Halogen headlight, LED tail/stop light, amber front and rear turn signals.
Security:
Harley-Davidson Smart Security System with proximity-based wireless ignition.
System:
Advanced Audio System with CB/Intercom, 40-watt per channel amplifier.
Features:
AM/FM radio, CD player, auxiliary input, handlebar-mounted audio controls, integrated CB/intercom system.
Speakers:
Fairing-mounted speakers and lower fairing speakers.
Cruise Control:
Electronic cruise control system for reduced rider fatigue on long journeys.
Cb Intercom:
Integrated Citizens Band (CB) radio and rider-to-passenger intercom system.
Display:
Analog tachometer and speedometer, digital odometer, trip meter, fuel level, engine diagnostics, gear indicator, clock.
First Service:
1,000 miles (1,600 km) or 6 months.
Subsequent Services:
Every 5,000 miles (8,000 km) or 12 months thereafter.
Engine Oil Change:
Every 5,000 miles (8,000 km) or 12 months, whichever comes first.
Transmission Primary Chaincase Lube Change:
Every 10,000 miles (16,000 km) or 24 months.
Engine Oil:
Harley-Davidson SYN3 (Synthetic) SAE 20W50, or equivalent API CI-4 rated motorcycle oil.
Engine Oil Capacity:
3.5 US quarts (3.3 Liters) with filter change.
Primary Chaincase Lubricant:
Harley-Davidson Formula + (or SAE 75W-85 GL-5 gear oil)
Primary Chaincase Lubricant Capacity:
24 US fluid ounces (710 ml).
Transmission Lubricant:
Harley-Davidson Formula + (or SAE 75W-85 GL-5 gear oil)
Transmission Lubricant Capacity:
28 US fluid ounces (830 ml).
Brake Fluid:
DOT 4 Brake Fluid (for ABS systems, use approved fluid only)
Fork Oil:
Harley-Davidson Type 'E' or Type 'HD 1' (or equivalent 15W fork oil)
Rear Shock Oil:
N/A (Air-adjustable shocks)
Cam Chain Tensioners:
Early Twin Cam models (prior to 2007) had known issues with hydraulic cam chain tensioners. 2010 models typically feature updated components, but inspection is recommended.
Voltage Regulator:
Occasional failures reported, leading to charging system issues. Diagnosis and replacement may be required.
Fuel Pump Module:
Potential for failure, resulting in no-start conditions or stalling. Diagnosis and replacement procedures are detailed in the manual.
Cruise Control Actuator:
Can fail intermittently, affecting cruise control functionality. Electrical diagnostics are crucial.
Heritage:
Harley-Davidson, established in 1903, is an iconic American motorcycle manufacturer with a rich legacy in V-twin engines and custom culture.
Touring Lineage:
The Ultra Classic designation represents the pinnacle of Harley-Davidson's long-standing touring motorcycle line, evolving from models like the Electra Glide.
Twin Cam Introduction:
The Twin Cam engine platform, introduced in 1999, provided a significant upgrade in performance and reliability for Harley-Davidson touring bikes.
Manufacturing Location:
York, Pennsylvania, USA and Milwaukee, Wisconsin, USA
Segment Awards:
While specific awards for the 2010 model year may be scarce, the FLHTCU Ultra Classic consistently received accolades in its segment for comfort, touring capability, and features from motorcycle publications.
Owner Satisfaction:
Generally high owner satisfaction ratings for its intended purpose as a long-distance touring platform.
Emissions:
Compliant with applicable EPA and California Air Resources Board (CARB) emissions standards for the model year.