Market Segment:
Classic American V-twin motorcycles
Alternative Resources:
Outdated paper manuals, generic online forums
Key Value Proposition:
Comprehensive, factory-accurate, model-specific repair information for DIY enthusiasts and independent mechanics
Diagnostic Capabilities:
Empowers users to diagnose and repair their own vehicles, saving on dealership labor costs
Instructional Quality:
Step-by-step instructions, diagrams, illustrations, and wiring schematics for ease of repair
Model Coverage:
All FL, FLH, FX, FXE, FXS models
Repair Scope:
A-Z (All repairs from basic maintenance to complete overhaul)
Page Count:
Not specified, but described as 'comprehensive'
Manual Type:
Factory Service Manual
Delivery Method:
Instant Download
Engine Systems:
Engine disassembly, assembly, lubrication, cooling, fuel, ignition, exhaust systems
Transmission Drivetrain:
Transmission, primary drive, clutch, final drive (chain/belt depending on model)
Electrical Systems:
Battery, charging system, ignition system, lighting, starting system, wiring schematics
Chassis Suspension Brakes:
Frame, front fork (leading-link, telescopic), rear suspension, wheels, tires, brakes (drum/disc depending on model)
Bodywork Fittings:
Body panels, fenders, fuel tanks, seats, handlebars, controls
Maintenance Procedures:
Oil changes, filter replacements, chain adjustment, lubrication points, spark plug service
Diagnostic Procedures:
Troubleshooting guides, fault diagnosis for electrical and mechanical issues
Repair Procedures:
Engine rebuilds, transmission overhauls, brake system repairs, electrical component replacement
Installation Procedures:
Component installation and adjustment
Technical Depth:
Factory-level, detailed step-by-step instructions for all repairs and maintenance, including diagnostic procedures and specifications
Information Type:
Vehicle/Model Specific
Searchability:
Likely text-searchable within the PDF
Printability:
All pages printable
Image Enhancement:
Images can be blown up and printed enlarged
Binding Type:
Digital (no physical binding)
Paper Type:
Digital (no physical paper)
Operating Systems:
Windows 7, Vista (32/64-bit), XP, ME, 98, NT, 2000, Mac computers
Software Requirements:
Adobe PDF Reader
Engine Configuration:
Air-cooled, 45-degree V-twin, OHV (Overhead Valve)
Engine Displacement Range:
Commonly 69.9 cu in (1146cc) Shovelhead engines; earlier models may have Panhead derivatives or related displacements.
Engine Variants:
Shovelhead (used in most models of this era), potentially earlier designs depending on specific FL/FX variations within the year range.
Horsepower Torque:
Specific figures vary by exact year and model, but generally in the 50-60 HP range with substantial torque.
Carburetion:
Typically single carburetor (e.g., Keihin butterfly, Linkert on earlier variants if applicable). Dual carburetors were uncommon for this period's stock configurations.
Fuel Delivery:
Gravity feed from fuel tank via carburetor
Ignition Type:
Contact breaker points and condenser ignition, with mechanical advance. Electronic ignition systems became more prevalent later.
Transmission Type:
4-speed constant mesh, foot shift with hand clutch
Optional Transmission:
Not applicable for standard factory options during this period for these models
Primary Drive Type:
Wet multi-plate clutch, chain drive to transmission
Final Drive Type:
Chain drive to rear wheel
Transmission Fluid:
Manual will specify Harley-Davidson recommended fluids (typically gear oil for the primary and transmission, or specialized Harley fluids)
Wheelbase:
Varies by model (e.g., FLH typically longer than FX models)
Seat Height:
Varies by model and suspension configuration
Dry Weight:
Varies significantly by model (e.g., FLH models are heavier than FX models), typically in the 500-650 lbs range.
Safety Ratings:
No standardized crash ratings like modern automobiles; focus on mechanical integrity and operational safety
Braking System:
Dual-action front brakes (drum or disc depending on year/model), rear drum brake. Manual will detail adjustment and maintenance.
Lighting System:
Headlight, taillight, brake light, turn signals (where equipped), manual covers electrical troubleshooting for these systems.
Oil Change Interval:
Typically every 2,000-3,000 miles or annually, as specified in the manual.
Chain Adjustment Interval:
Regularly checked, especially drive chain tension, as specified in the manual.
Engine Oil Type:
Manual will specify Harley-Davidson approved viscosities and types (e.g., straight-weight or multi-viscosity oils, often 20W-50 or similar).
Primary Chain Case Fluid:
Specific Harley-Davidson fluid or equivalent specified in manual.
Brake Fluid Type:
DOT 3 or DOT 4, depending on whether the model features disc brakes and the specific year's recommendation. Manual is critical here.
Common Wear Items:
Pushrod tube seals, oil leaks from engine base and transmission, electrical component reliability, brake system wear, carburetor adjustments.
Shifter Shaft Seal:
Prone to leaks, a common repair addressed in service manuals.
Tune Up Procedures:
Includes ignition timing adjustment, carburetor tuning, spark plug replacement, and general inspection.
Brand Legacy:
Harley-Davidson has a long-standing legacy of producing iconic American motorcycles known for their V-twin engines and distinct styling.
Era Significance:
This period (1970-1978) represents the transition to and refinement of the Shovelhead engine and the establishment of the FX and FL model lines as distinct platforms.
Model Differentiation:
FL/FLH models generally represent larger touring or cruiser-style bikes, while FX models (like the Super Glide) often featured a more 'custom' or sportier stance, sometimes with different frames or styling cues.
Manufacturing Location:
Milwaukee, Wisconsin, USA
