Segment:
Cruiser motorcycle, classic styling with modern (for its time) V-twin engine technology.
Target Audience:
Harley-Davidson owners seeking to perform their own maintenance, repairs, and modifications on their FLST Heritage Softail.
Competitors:
Other American V-twin cruisers from brands like Indian (though less prevalent in this specific era), and potentially Japanese cruisers with similar displacement and styling cues.
Vehicle Design:
Iconic retro styling, teardrop fuel tank, wide handlebars, extensive use of chrome, whitewall tires, sprung seat, laced wheels.
Manual Benefit:
Empowers owners with the knowledge to maintain their classic Harley-Davidson, reducing reliance on dealerships and fostering a deeper understanding of the machine.
Primary Coverage:
Service, Repair, Maintenance, Troubleshooting
Specific Systems:
Engine, Transmission, Chassis, Electrical, Fuel System, Brakes, Suspension, Bodywork
Estimated Pages:
Hundreds of pages (specific number not provided in product description, but typical for workshop manuals of this era).
Type:
Workshop Repair Service Manual
Engine:
Detailed breakdown of Evolution (Evo) engine components, cylinder heads, pistons, crankshaft, camshafts, lubrication system, cooling (air-cooled), fuel delivery (carburetor specific, likely Keihin CV), ignition system, exhaust system.
Transmission:
Service and repair of the 5-speed constant mesh transmission, clutch assembly, primary drive, final drive (belt drive specific).
Chassis:
Frame inspection and repair, front forks (Showaa telescopic), rear suspension (shock absorbers, swingarm), wheel bearings, steering head bearings.
Electrical:
Wiring diagrams, battery, charging system (stator, regulator/rectifier), starting system (starter motor), lighting system, ignition system troubleshooting, instrument cluster.
Fuel System:
Carburetor disassembly, cleaning, and adjustment (likely Keihin CV), fuel tank, fuel lines, fuel pump (if applicable, typically gravity fed for this era).
Brakes:
Front and rear brake systems, caliper service, master cylinder service, brake fluid replacement, pad replacement, rotor inspection.
Bodywork:
Fender removal and installation, fuel tank mounting, seat assembly, fairing/windshield (if equipped) removal and installation, chrome component care.
Maintenance:
Routine servicing, oil changes, filter replacements, spark plug service, chain adjustment (if applicable, but this model is belt drive), brake bleeding, tire pressure checks, battery maintenance.
Repair:
Engine top-end rebuild, transmission gear replacement, clutch adjustment, fork seal replacement, brake caliper rebuild, electrical component replacement, carburetor tuning.
Troubleshooting:
Diagnostic procedures for common starting issues, running problems, electrical faults, braking system irregularities, transmission shifting issues.
Depth:
Comprehensive, covering everything from basic rider maintenance to full engine and transmission overhauls. Includes diagnostic charts and detailed exploded views.
File Type:
PDF (Portable Document Format)
Searchability:
Likely text-searchable if scanned from an original manual with OCR.
Quality:
Dependent on the original source scan quality, but professional workshop manuals are typically high-resolution.
Binding:
Not applicable for PDF download.
Paper Type:
Not applicable for PDF download.
Engine Type:
Air-cooled, 45-degree V-twin, Evolution (Evo) Engine
Displacement:
1339.8 cc (82 cubic inches)
Bore X Stroke:
3.437 in. x 4.250 in. (87.3 mm x 108 mm)
Horsepower:
Approx. 50-55 HP (at crankshaft, typical for this era)
Torque:
Approx. 65-70 ft-lbs (at crankshaft, typical for this era)
Carburetor:
Keihin CV (Constant Velocity) 40mm
Fuel Type:
Unleaded gasoline, minimum 87 octane
Ignition Type:
Electronic Ignition, Single Fire (typical for this generation)
Oil Type:
Harley-Davidson Genuine V-Twin Oil (or equivalent API SG, SAE 20W50)
Oil Capacity:
3.0 US quarts (2.8 liters) with filter change
Transmission Type:
5-speed Constant Mesh
Primary Drive:
Duplex chain, 34/51 tooth (2.07:1 ratio)
Final Drive:
Belt drive, 32/65 tooth (2.03:1 ratio)
Clutch:
Wet, multi-plate, diaphragm spring
Transmission Oil Type:
Harley-Davidson Transmission Lubricant (or SAE 80W-90 Hypoid Gear Oil)
Transmission Oil Capacity:
26 US fluid ounces (0.77 liters)
Crash Test Ratings:
Not applicable for motorcycles of this era; focus is on rider protection and vehicle stability.
Braking System:
Hydraulic disc brakes front and rear.
Suspension:
Telescopic front forks, adjustable rear shock absorbers for stability and ride comfort.
Lighting:
Halogen headlight, taillight, brake light, turn signals for visibility.
Frame Construction:
Steel tube frame providing a robust platform.
Instrumentation:
Analog speedometer, tachometer (often optional or integrated into a single gauge cluster), odometer, trip meter, indicator lights for oil pressure, battery, turn signals, high beam.
Rider Aids:
None; this era of Harley-Davidson focused on traditional motorcycling experience.
Connectivity Features:
None.
Initial Service:
Typically around 1,000 miles (1600 km) for the first major service, including oil change, filter, and inspection.
Regular Oil Change:
Every 2,500 - 3,000 miles (4,000 - 5,000 km) or annually, whichever comes first.
Spark Plug Replacement:
Typically every 7,500 - 10,000 miles (12,000 - 16,000 km).
Belt Tension Check:
Check belt tension at regular intervals, usually every 5,000 miles, per manual specifications.
Engine Oil Spec:
API SG, SAE 20W50 Motorcycle-specific oil
Transmission Oil Spec:
SAE 80W-90 Hypoid Gear Oil
Carburetor Tuning:
Keihin CV carburetors can require periodic tuning for optimal performance due to air quality changes or wear.
Oil Leaks:
Aging seals and gaskets can lead to minor oil leaks, common in older V-twins.
Electrical Connections:
Corrosion or loose connections in the wiring harness can cause intermittent electrical issues.
Belt Drive Wear:
Regular inspection of the belt drive for wear and proper tension is crucial to prevent premature failure.
Brand Legacy:
Harley-Davidson, established in 1903, is an iconic American motorcycle manufacturer renowned for its V-twin engines and distinctive cruiser styling.
Heritage Softail Introduction:
The Heritage Softail model was introduced to embody classic Harley-Davidson styling, drawing inspiration from post-war models while incorporating the advancements of the Evolution engine.
Evolution Engine Integration:
The 1984 introduction of the Evolution engine was a pivotal moment for Harley-Davidson, replacing the Shovelhead and Panhead engines, and this manual covers its early iterations in the FLST platform.
Manufacturing Location:
Milwaukee, Wisconsin, USA (primary manufacturing)
Production Years Covered:
1987, 1988, 1989, 1990
