Segment:
Cruiser Motorcycle
Target Audience:
Owners and technicians seeking detailed, official repair and maintenance information for the FLSTN Heritage Softail Special.
Competitors:
Other cruiser motorcycles of the late 1980s and 1990s, including models from Honda (Shadow), Yamaha (V-Star), Kawasaki (Vulcan), and other Harley-Davidson Softail variants.
Model Appeal:
Classic styling reminiscent of 1940s Harley-Davidsons, comfortable ride, V-twin rumble, and the iconic Harley-Davidson brand experience.
Manual Value Proposition:
Provides the complete, authoritative technical documentation required for proper maintenance, troubleshooting, and repair, ensuring the longevity and performance of the vehicle.
Applicable Years:
1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999
Model Variants Covered:
FLSTN Heritage Softail Special
Estimated Page Count:
Approximately 800-1200 pages (typical for comprehensive FSMs of this era)
Type:
Factory Service Manual (FSM) / Repair Manual
Format:
Digital Download (PDF)
Powertrain:
Engine (Evolution Big Twin), Transmission (5-speed Cruise Drive), Primary Drive, Clutch, Final Drive
Chassis:
Frame, Front Suspension (Telescopic Forks), Rear Suspension (Softail Monoshock), Wheels, Tires, Brakes (Front and Rear Disc), Steering
Electrical:
Ignition System, Lighting System (Headlight, Taillight, Turn Signals), Battery, Charging System (Alternator, Regulator), Starting System, Instrumentation, Wiring Diagrams
Fuel And Exhaust:
Carburetor (Keihin CV), Fuel Tank, Fuel Lines, Exhaust System
Bodywork And Trim:
Fenders, Fuel Tank, Seat, Handlebars, Controls, Mirrors, Paint and Finish Procedures (where applicable)
Maintenance:
Routine Service Intervals, Lubrication, Fluid Changes, Filter Replacements, Spark Plug Service, Brake Pad Replacement
Diagnostics And Troubleshooting:
Systematic Fault Finding, Symptom-Based Troubleshooting Guides, Diagnostic Codes (if applicable)
Repair And Overhaul:
Component Disassembly, Reassembly, Rebuild Procedures for Engine, Transmission, Suspension, Brakes
Electrical Repair:
Wiring Harness Repair, Component Testing and Replacement (Ignition, Charging, Starting Systems)
Special Tools:
Identification and Usage of Harley-Davidson Specific Tools
Depth:
Comprehensive factory-level detail, suitable for professional technicians and advanced DIY enthusiasts. Covers everything from basic adjustments to complete engine and transmission rebuilds.
Engine Type:
Air-cooled, 45-degree V-twin, pushrod-activated, overhead valves
Displacement:
1337.6 cc (81.8 cubic inches)
Bore X Stroke:
3.44 in x 4.25 in (87.3 mm x 108 mm)
Compression Ratio:
9.2:1 (approximate, can vary slightly by year)
Horsepower:
Approx. 55-60 HP @ 4800 RPM (claimed, actual may vary)
Torque:
Approx. 67-70 ft-lbs @ 3200 RPM (claimed, actual may vary)
Carburetor:
Keihin 40mm CV (Constant Velocity) Carburetor
Fuel Type:
Unleaded gasoline, 91 octane (AKI) or higher recommended
Ignition Type:
Electronic Ignition (CDI or similar)
Type:
5-speed Constant Mesh Manual Transmission
Type:
N/A (Standard for this model)
Primary Drive:
Duplex chain (wet clutch)
Transmission Fluid:
Harley-Davidson Formula + Transmission, Jiffy Lube, or equivalent SAE 50W API GL-1 gear oil. Check manual for specific part numbers.
Wheelbase:
Approximately 64.5 inches (1638 mm)
Length:
Approximately 93.0 inches (2362 mm)
Width:
Approximately 37.0 inches (940 mm)
Seat Height:
Approximately 26.5 inches (673 mm) laden
Dry Weight:
Approximately 600-630 lbs (272-286 kg)
Gross Vehicle Weight Rating:
Approximately 1000 lbs (454 kg)
Crash Test Ratings:
N/A (Motorcycles are not typically rated by NHTSA or IIHS for crash safety in the same manner as automobiles.)
Braking System:
Dual disc front brakes, single disc rear brake with hydraulic actuation. Manual will detail pad replacement and fluid specifications.
Lighting:
Halogen headlight, stop/tail light, front and rear turn signals. Manual covers bulb types and troubleshooting.
Frame Construction:
Steel tube frame designed for stability and handling.
Tire Construction:
Tubed tires, front and rear. Manual will specify recommended tire types and pressures.
Features:
Basic instrumentation including speedometer, odometer, tachometer (on some models), and indicator lights. No advanced infotainment systems typical of modern vehicles.
Features:
N/A (No electronic driver assistance systems like ABS, traction control, or cruise control standard on this model.)
Features:
N/A (No factory Bluetooth, USB, or smartphone integration.)
Initial Service:
First service typically at 1,000 miles (1600 km), including oil and filter change, chain adjustment, and inspection.
Regular Oil Change:
Every 2,500 - 5,000 miles (4,000 - 8,000 km) or 6 months, whichever comes first, depending on oil type and riding conditions. Consult manual for precise intervals.
Spark Plug Replacement:
Typically every 10,000 - 15,000 miles (16,000 - 24,000 km). Manual will specify exact interval and recommended spark plug type (e.g., Harley-Davidson or equivalent).
Belt Tension Check:
Regular checks, especially after tire replacement or at significant mileage intervals. Manual details the procedure and tension specifications.
Engine Oil:
Harley-Davidson 20W-50 or equivalent API CG-4 rated motorcycle oil. Check manual for precise specification and capacity (approx. 4 quarts).
Primary Chain Case Oil:
Harley-Davidson Formula + Transmission, Jiffy Lube, or equivalent SAE 50W API GL-1 gear oil. Check manual for capacity.
Brake Fluid:
DOT 4 or DOT 5 (depending on model year, typically DOT 5 for this era). Manual will specify exact type and bleed procedures.
Carburetor Tuning:
Keihin CV carburetor may require periodic tuning or adjustment for optimal performance, especially with altitude or modifications.
Cam Chain Tensioners:
Early Evolution engines can have issues with cam chain tensioner pads wearing out. Manual will cover inspection and replacement procedures, and often advises upgrades.
Wiring Harness Wear:
Age-related wear and tear on wiring harnesses, particularly at pivot points and stress areas, can lead to intermittent electrical faults. Manual provides diagrams for diagnosis.
Rear Shock Leaks:
Original rear shock absorbers may develop leaks over time. Manual will detail replacement and adjustment procedures.
Brand Foundation:
Founded in 1903 in Milwaukee, Wisconsin, Harley-Davidson is an iconic American motorcycle manufacturer known for its V-twin engines and distinctive styling.
Softail Introduction:
The Softail platform, introduced in 1984, features a hidden rear monoshock suspension system that mimics the look of a rigid hardtail frame while providing modern suspension comfort.
Flstn Introduction:
The FLSTN Heritage Softail Special was introduced in 1988, offering a blend of retro styling and modern engineering, often featuring distinctive paint schemes and chrome accents.
Production Period Covered:
1990-1999 for this specific manual's scope.
Manufacturing Location:
Milwaukee, Wisconsin, USA (primary)
Brand Awards:
Harley-Davidson as a brand has received numerous awards over its history for product quality, innovation, and brand loyalty. Specific model awards are less common than general brand recognition.
Customer Satisfaction:
Generally high customer satisfaction for its iconic status and riding experience, though specific reliability ratings may vary compared to some competitors.
Emissions Standards:
Manual will detail relevant emissions compliance for the model years and regions it covers, which would adhere to US EPA standards for motorcycles of that era.
