Segment:
Full-size Grand American Touring motorcycle.
Target Audience:
Long-distance riders, touring enthusiasts, and DIY mechanics seeking factory-level repair information.
Competitors:
BMW R 1200 RT, Indian Roadmaster, Honda Gold Wing.
Fairing Design:
Bat-wing fairing with integrated vents for reduced buffeting.
Storage:
Large, integrated hard saddlebags and tour-pak capacity (optional/model dependent).
Infotainment:
Boom! Box 6.5GT infotainment system with touchscreen, GPS, and Bluetooth connectivity.
Diy Focus:
Designed for the do-it-yourself mechanic, with clear instructions and diagrams.
Factory Origin:
Directly from the manufacturer, ensuring accuracy and completeness.
Visual Aid Quality:
Top-quality diagrams that are essential for complex repairs.
Engine System:
Complete coverage of Twin Cam 103 engine, including disassembly, assembly, inspection, and component replacement.
Fuel And Emissions:
Detailed information on fuel injection (EFI) system, fuel pump, injectors, throttle body, and emissions control systems.
Ignition System:
Ignition timing, spark plugs, ignition coils, and related electronic control modules (ECM).
Transmission And Drivetrain:
Service procedures for the 6-speed Cruise Drive transmission, primary drive, and final drive belt system.
Electrical System:
Comprehensive wiring diagrams, battery service, charging system (alternator/stator, regulator/rectifier), starter motor, lighting, and accessory wiring.
Braking System:
Hydraulic brake system service, including master cylinders, calipers, brake lines, fluid replacement, bleeding procedures, and ABS (if equipped).
Suspension System:
Front fork (including telescopic fork service) and rear shock absorber maintenance and replacement.
Chassis And Frame:
Frame inspection, swingarm service, steering head bearing maintenance, and wheel bearing replacement.
Bodywork And Fairings:
Removal and installation procedures for fairings, saddlebags, windshield, and other body components.
Routine Maintenance:
Oil changes, filter replacements, air filter service, spark plug replacement, and lubrication points.
Troubleshooting Guides:
Diagnostic flowcharts and symptom-based troubleshooting for common issues.
Disassembly And Assembly:
Step-by-step instructions for major component removal and installation.
Torque Specifications:
All critical fasteners and their correct torque values.
Wiring Diagrams:
Detailed, high-quality wiring schematics for the entire motorcycle.
Special Tool Identification:
Listing and usage of specialized tools required for specific repairs.
Depth:
Comprehensive, from basic maintenance to complete engine and transmission overhauls, electrical diagnostics, and chassis repairs.
Diagram Resolution:
High-resolution, clear, and detailed diagrams.
Text Clarity:
Easy-to-read text sections.
Binding:
Not Applicable (PDF Format)
Paper:
Not Applicable (PDF Format)
Engine Type:
Air-cooled, Twin Cam 103
Displacement:
103 cubic inches (1690cc)
Bore X Stroke:
3.875 in. x 4.375 in. (98.4 mm x 111.1 mm)
Fuel System:
Electronic Sequential Port Fuel Injection (ESPFI)
Torque:
104.7 ft-lbs @ 3500 rpm (142 Nm @ 3500 rpm)
Horsepower:
Estimated 75-80 HP (Varies slightly by source and tuning)
Type:
6-speed Cruise Drive
Primary Drive:
Chain, 34/46 ratio
Final Drive:
Belt, 32/66 ratio
Gear Ratios:
1st: 9.593, 2nd: 6.650, 3rd: 4.938, 4th: 3.816, 5th: 3.190, 6th: 2.790
Primary Chain Case Oil:
Harley-Davidson Formula+ (or equivalent SAE 50 lubricant)
Transmission Oil:
Harley-Davidson Transmission Fluid (or equivalent SAE 80W-90 gear lubricant)
Crash Test Ratings:
Not Applicable (Motorcycle standards differ from automotive).
Braking:
Standard dual front disc brakes, single rear disc brake. Optional Reflex Linked with ABS (Anti-lock Braking System).
Lighting:
Halogen headlight, LED tail light and brake light.
Frame Construction:
Steel frame and front fork.
Ergonomics:
Designed for rider comfort on long journeys, reducing fatigue.
System Name:
Boom! Box 6.5GT
Features:
6.5-inch color touchscreen, AM/FM radio, USB port, Bluetooth connectivity for audio streaming and calls, GPS navigation (optional on some trims).
Audio Output:
Integrated speakers in fairing, with options for fairing lowers and tour-pak speakers.
ABS:
Reflex Linked Brakes with ABS available.
Cruise Control:
Standard electronic cruise control.
Bluetooth:
Yes, for audio and phone.
Usb Port:
Yes, for device charging and media playback.
First Service:
1000 miles (1600 km) or 6 months.
Subsequent Service:
Every 5000 miles (8000 km) or 12 months thereafter.
Engine Oil Change:
Recommended every 5000 miles (8000 km) or annually.
Engine Oil:
Harley-Davidson SYN3 (Fully Synthetic SAE 20W-50) or recommended 20W-50 conventional/synthetic motorcycle oil.
Brake Fluid:
DOT 4 (for non-ABS and ABS systems, confirm specific model needs).
Coolant:
Not applicable (Air-cooled engine).
Common Wear Items:
Clutch plates, brake pads, drive belt, suspension bushings.
Potential Electrical:
Stator failure, regulator/rectifier issues (though improved in later models), battery drain from accessories or aging batteries.
Engine Performance:
Some riders report minor performance gains with aftermarket tuning or exhaust upgrades; the Twin Cam 103 is generally reliable but can be sensitive to tuning.
Reputation:
Iconic American motorcycle manufacturer known for V-twin engines and customization culture.
Introduction Year:
1998 (Road Glide designation).
Key Changes Pre 2015:
Introduction of the Twin Cam engine platform, evolving infotainment systems, and chassis updates.
2015 Specifics:
Refined bat-wing fairing for improved aerodynamics and rider comfort, updated Boom! Box infotainment, and evolution of the Twin Cam 103 engine.
Manufacturing Location:
United States (York, Pennsylvania and Milwaukee, Wisconsin plants).