Motorcycle Segment:
Performance cruiser with sport-oriented styling and handling characteristics within the Harley-Davidson lineup of the late 80s and early 90s.
Key Competitors Era:
Other performance-oriented cruisers from American manufacturers and potentially some Japanese models aiming for a similar niche.
Model Distinction:
FXRS-SP offered a sportier riding position, often with dual front disc brakes, improved suspension, and sometimes upgraded engine components compared to standard Low Rider models. It was a step towards the FXR platform's reputation for better handling.
Manual Importance:
Essential for owners and technicians seeking to maintain, repair, and optimize the performance of this specific Harley-Davidson model. Provides detailed, factory-level information not readily available elsewhere.
Engine:
Shovelhead Evolution 1340cc (80ci) V-Twin (detailed inspection, overhaul, component replacement, tuning)
Fuel System:
Carburetion (e.g., Keihin CV carburetor adjustments, rebuild), Fuel Injection (if applicable for specific sub-models/years, though less common for FXRS-SP in this era), fuel tanks, fuel lines, petcock
Ignition System:
Electronic ignition system, spark plugs, ignition coils, timing adjustments
Transmission:
5-speed constant mesh gearbox (e.g., teardrop case), clutch operation, primary drive, transmission overhaul, gear replacement, lubrication
Drivetrain:
Belt drive, final drive belt inspection and tensioning, rear sprocket, wheel bearings
Suspension:
Front forks (e.g., Showa or Showa-style), fork oil replacement, seal replacement, air assist (if equipped), rear shock absorbers, adjustment, rebuild
Brakes:
Front and rear disc brakes, hydraulic system, brake caliper service, master cylinder rebuild, brake pad replacement, fluid flush and bleed
Electrical System:
Wiring diagrams, lighting, charging system (stator, regulator/rectifier, battery), starting system (starter motor, solenoid), horn, switches, fuses, relays
Chassis Frame:
Frame inspection, steering head bearing service, swingarm pivot, wheel hub service
Bodywork:
Fender removal/installation, fuel tank removal/installation, seat, handlebars, controls, fairings (if applicable), exhaust system
Maintenance:
Routine maintenance checks, lubrication points, fluid changes (oil, transmission, primary), filter replacement, battery maintenance, tire pressure checks, chain/belt adjustment (if applicable)
Troubleshooting:
Diagnostic charts for common problems (e.g., starting issues, running problems, electrical faults), symptom-based diagnosis
Repair Overhaul:
Complete engine rebuild, transmission disassembly and reassembly, brake system overhaul, suspension fork servicing, electrical component replacement
Component Replacement:
Detailed instructions for replacing parts such as pistons, rings, valves, clutch plates, bearings, seals, gaskets, ignition components, electrical units
Adjustment Calibration:
Carburetor idle speed and mixture, ignition timing, clutch cable free play, throttle cable free play, suspension preload
Depth Level:
Comprehensive workshop level, suitable for professional technicians and skilled DIY mechanics. Covers everything from basic service to complete engine and transmission overhauls.
Digital Format Type:
Likely PDF (Portable Document Format), allowing for searchability and printing.
Digital Printability:
Designed to be printable on standard paper sizes (e.g., Letter, A4). High-resolution scans or original source material are assumed for clear diagrams and text.
Physical Binding Analogy:
If printed, would typically be a comb-bound or spiral-bound manual for easy page lay-flat use in a workshop environment.
Physical Paper Analogy:
Original manuals would be printed on durable, often semi-gloss paper to withstand workshop conditions.
Engine Type:
Air-cooled, 45-degree V-twin, pushrod-actuated overhead valves
Engine Displacement:
1339.8 cc (81.9 cubic inches)
Engine Bore X Stroke:
3.4375 in x 4.25 in (87.3 mm x 108 mm)
Compression Ratio:
Approximately 8.3:1 to 9.0:1 (depending on specific year/configuration)
Horsepower Estimated:
Around 65-70 HP (at the crank, specific figures vary)
Torque Estimated:
Around 70-75 ft-lbs (at the crank, specific figures vary)
Carburetor Type:
Typically Keihin CV (Constant Velocity) 40mm
Fuel Type Recommendation:
Unleaded gasoline, 87-91 octane rating recommended (check manual for exact specifications)
Oil Type Recommendation:
Harley-Davidson 20W50 motorcycle oil or equivalent API SG or higher specification.
Oil Capacity:
Approximately 3 US quarts (2.8 liters) with filter change.
Crash Test Ratings:
Not applicable in the same way as automobiles; safety relies on rider skill, braking performance, and handling stability.
Braking System:
Dual front disc brakes (often 11.5 inch) and single rear disc brake, hydraulically actuated. ABS was not generally available for this era.
Lighting System:
Halogen headlight, taillight, brake light, turn signals, and running lights.
Frame Construction:
Steel tube frame designed for stability and rigidity.
Tire Type:
Tubed bias-ply or radial tires, depending on original fitment and replacements.
Oil Change Interval:
Every 2,500-5,000 miles (4,000-8,000 km) or 6 months, whichever comes first (refer to manual for exact specification).
Primary Chaincase Oil Change:
Every 5,000-10,000 miles (8,000-16,000 km) or annually. Check manual for specific interval.
Spark Plug Replacement:
Typically every 10,000-20,000 miles (16,000-32,000 km). Consult manual for plug type and gap.
Brake Fluid Type:
DOT 4 or DOT 5.1 hydraulic brake fluid (confirm with manual as DOT 5 silicone fluid was sometimes used by HD, but DOT 4 is more common for systems without it specified).
Fork Oil Type:
Specific weight fork oil (e.g., 10W or 15W), capacity and type to be detailed in manual.
Engine Oil Leaks:
Common for V-twins of this era, particularly around pushrod tubes, rocker boxes, and crankcase seals. Manual will detail proper gasket replacement and torque sequences.
Transmission Shifting:
Potential for stiff shifting or false neutrals if clutch adjustment is incorrect or internal wear occurs. Manual covers adjustment and rebuild.
Electrical Gremlins:
Aging wiring harnesses and connectors can cause intermittent issues. Comprehensive wiring diagrams in the manual are crucial.
Carburetor Issues:
Keihin CV carburetors can become gummed up, leading to poor idle or acceleration. Manual covers cleaning and rebuilding.
Harley Davidson Legacy:
Harley-Davidson, founded in 1903, is renowned for its iconic V-twin motorcycles, cruiser culture, and enduring American legacy.
Fxr Lineage:
The FXRS-SP is part of the FXR family, which was introduced in the early 1980s as a departure from traditional Harley styling, emphasizing sportier handling. The FXRS-SP represented a performance-oriented iteration within this successful platform.
Manufacturing Location:
United States (York, Pennsylvania and Milwaukee, Wisconsin)
Key Development Era:
This period (late 80s/early 90s) was marked by Harley-Davidson's recovery and revitalization, with the introduction of the Evolution engine and improvements across their model lines.
