Segment:
Full-size touring motorcycle.
Target Audience:
Harley-Davidson owners seeking in-depth technical knowledge for maintenance and repair.
Key Competitors:
Other large displacement touring motorcycles from brands like Indian, Honda, and Yamaha.
Unique Selling Point:
The Road Glide's integrated fairing design with frame-mounted handlebars offers a distinct riding experience and aerodynamic advantage.
Engine:
Complete service, maintenance, troubleshooting for the Harley-Davidson Twin Cam 88 engine.
Fuel System:
EFI (Electronic Fuel Injection) system diagnostics, adjustments, and component service.
Transmission:
Service and repair procedures for the 6-speed Cruise Drive transmission.
Electrical System:
Wiring diagrams, component testing, ignition system, lighting, charging system, and accessories.
Brakes:
Front and rear brake system maintenance, bleeding, component replacement, and troubleshooting.
Suspension:
Front fork (39mm) and rear shock absorber service, adjustment, and replacement.
Chassis:
Frame, swingarm, steering head, and wheel bearing service.
Bodywork:
Fairing removal and installation, fuel tank, fenders, saddlebags, and seating.
Maintenance:
Scheduled maintenance, oil changes, filter replacements, tune-ups, and fluid checks.
Troubleshooting:
Systematic diagnostic procedures for common and uncommon issues, including fault codes.
Repair:
Detailed step-by-step repair instructions for all major components and systems.
Diagnostics:
ECM diagnostic routines, sensor testing, and data stream interpretation.
Specifications:
Torque specifications, clearances, fluid capacities, and electrical values.
Depth Level:
Comprehensive, covering from basic user maintenance to complete engine and transmission overhauls.
Engine Type:
Harley-Davidson Twin Cam 88 V-Twin
Displacement:
1450cc (88 cubic inches)
Bore X Stroke:
3.75 in. x 4.00 in. (95.25 mm x 101.6 mm)
Cooling System:
Air-cooled
Horsepower:
Approx. 67 HP @ 5200 RPM (Manufacturer Estimate)
Torque:
Approx. 86 ft-lbs @ 3500 RPM (Manufacturer Estimate)
Fuel Delivery:
Electronic Sequential Port Fuel Injection (ESPFI)
Fuel Type:
Unleaded gasoline, 91 octane (R+M)/2 or higher recommended
Type:
6-speed Cruise Drive
Clutch:
Cable-actuated, multi-plate wet clutch
Gear Ratios:
1st: 9.315, 2nd: 6.650, 3rd: 4.945, 4th: 3.825, 5th: 3.115, 6th: 2.578 (typical ratios)
Transmission Fluid Spec:
Harley-Davidson Genuine Formula + Transmission & Primary Chaincase Lubricant (or equivalent SAE 50W)
Crash Test Results:
Not applicable for motorcycles in the same manner as automobiles; focus is on rider protection and handling.
Brakes:
Dual 300mm front disc brakes with 4-piston calipers, Single 292mm rear disc brake with 2-piston caliper.
Lighting:
Halogen headlamp, LED tail light and brake light, front and rear turn signals.
Audio System:
AM/FM Radio, CB/Intercom ready, CD Player (typically in fairing compartment).
Display:
Analog gauges (speedometer, tachometer), digital display for odometer, trip, fuel level, gear selection, and diagnostics.
Cruise Control:
Electronic cruise control standard on FLTRI model.
Diagnostic Port:
Vehicle's diagnostic port (J1850) for use with Harley-Davidson scan tools.
First Service:
1000 miles (1600 km) or 6 months, whichever comes first (includes oil change, primary fluid change, inspection).
Subsequent Service:
Every 5000 miles (8000 km) or 6 months (includes oil change, inspection).
Major Service:
Refer to manual for specific intervals on transmission fluid, brake fluid, spark plugs, and belt inspection/replacement.
Engine Oil:
Harley-Davidson Genuine V-Twin 20W-50 Synthetic (or equivalent) - Part No. 62600004
Engine Oil Capacity:
3.5 US quarts (3.3 Liters) with filter change
Primary Fluid:
Harley-Davidson Genuine Formula + Transmission & Primary Chaincase Lubricant (or equivalent SAE 50W)
Primary Fluid Capacity:
2.7 US quarts (2.5 Liters)
Brake Fluid:
DOT 4 brake fluid
Fork Oil Spec:
Bel-Ray 10W (or equivalent) - Check manual for specific quantity and procedure.
Common Wear Items:
Clutch plates, wheel bearings, fork seals, brake pads.
Potential Electrical:
Battery charging issues, starter solenoid problems, and wiring harness integrity checks are important.
Engine Performance:
Carbon buildup on valves, cam chain tensioner wear (especially hydraulic units later in the Twin Cam run).
Heritage:
Harley-Davidson, founded in 1903, is an iconic American motorcycle manufacturer with a rich history of producing V-twin motorcycles.
Road Glide Introduction:
The Road Glide model, known for its frame-mounted fairing, debuted in 1980 and has evolved significantly over the decades.
Twin Cam Engine:
The Twin Cam 88 engine was introduced in 1999, replacing the Evolution engine, and was a significant upgrade for Harley-Davidson.
Manufacturing Location:
York, Pennsylvania, USA and Milwaukee, Wisconsin, USA
