Market Segment:
Performance cruiser motorcycle targeting riders who appreciated sporty handling and the classic Harley-Davidson V-twin experience.
Competitors Era:
Competed with other American V-twins and increasingly sophisticated Japanese cruisers of the late 80s and early 90s.
Model Distinctiveness:
The 'SP' designation often indicated performance enhancements, sportier suspension, and braking compared to standard Low Riders. FXRS models were known for their better handling characteristics.
Value For Owner:
Essential for maintaining the performance, reliability, and longevity of the FXRS-SP, enabling owners to perform complex repairs and diagnostics themselves.
Coverage Years:
1988, 1989, 1990, 1991, 1992, 1993
Coverage Models:
Harley-Davidson FXRS-SP Low Rider-Sport Edition
Estimated Page Count:
Varies by specific edition, but factory service manuals for this era are typically comprehensive, ranging from 300 to 600+ pages.
Manual Type:
Factory Service Repair Workshop Manual
Format:
Downloadable Digital File (likely PDF)
Engine Overhaul:
Complete engine disassembly, inspection, repair, and reassembly procedures for Evolution V-Twin engines.
Fuel System:
Carburetor (e.g., Keihin CV) adjustment, cleaning, rebuilding, and fuel tank/lines maintenance.
Ignition System:
Ignition timing, spark plugs, coils, ignition modules, and troubleshooting.
Transmission Drivetrain:
Clutch operation, transmission gear inspection and repair, primary drive, and final drive belt maintenance.
Suspension:
Front fork (e.g., Showa) disassembly, seal replacement, oil levels, and rear shock absorber service.
Brakes:
Front and rear brake system maintenance, caliper service, pad replacement, fluid bleeding, and master cylinder.
Electrical System:
Wiring diagrams, battery, charging system (stator, regulator/rectifier), lighting, starter, and accessory circuits.
Frame Chassis:
Frame inspection, steering head bearing service, and alignment checks.
Bodywork Fittings:
Fairing, fenders, seat, fuel tank removal/installation, and related trim.
Cooling System:
While air-cooled, includes oil cooler maintenance and checks.
Routine Maintenance:
Oil changes, filter replacements, chain adjustment (if applicable, though belt drive is common), tire pressure checks, and lubrication points.
Troubleshooting:
Systematic diagnostic procedures for common and uncommon issues, guided by symptoms.
Component Rebuilds:
Detailed steps for rebuilding carburetors, brake calipers, master cylinders, and engine components.
Wiring Diagrams:
Comprehensive, often color-coded, wiring schematics for all electrical systems.
Torque Specifications:
Essential torque values for critical fasteners throughout the motorcycle.
Special Tool Identification:
Identification of specialized tools required for specific procedures.
Depth:
Comprehensive, covering basic maintenance to complete engine and transmission rebuilds. Suitable for independent mechanics and serious enthusiasts.
Digital Format:
PDF (Portable Document Format) is the most common for downloadable manuals, offering searchability and easy access.
Image Resolution:
High-resolution images and diagrams are expected for clarity in repair procedures and wiring schematics.
Binding:
N/A (Digital Download)
Paper Quality:
N/A (Digital Download) - However, original factory manuals were typically printed on durable, matte paper.
Engine Family:
Harley-Davidson Evolution (Evo) V-Twin
Engine Type:
Air-cooled, 45-degree V-twin, pushrod-actuated overhead valves
Displacement:
80 cubic inches (1340cc)
Bore X Stroke:
3.497 in x 4.25 in (88.8 mm x 108 mm)
Horsepower Est:
Approximately 65-70 HP (varies slightly by tuning and specific model year)
Torque Est:
Approximately 75-80 lb-ft @ 3200 RPM (varies)
Fuel Delivery:
Carburetor (typically Keihin CV 40mm)
Fuel Type:
Unleaded Gasoline, minimum 87 octane
Oil Type:
Harley-Davidson Genuine V-Twin Motor Oil SAE 20W-50 or equivalent API SG rated motorcycle oil.
Oil Capacity W Filter:
Approximately 3.0 US quarts (2.8 L)
Safety Ratings:
Motorcycles of this era were not typically subjected to standardized crash test ratings like automobiles. Safety relied on design and rider discretion.
Braking System:
Dual front disc brakes, single rear disc brake. ABS was not typically available.
Lighting:
Halogen headlight, taillight, brake light, and turn signals.
Frame Construction:
Steel cradle frame designed for stability.
Infotainment Features:
Basic dashboard instrumentation including speedometer, tachometer (if equipped), odometer, trip meter, and indicator lights. No integrated infotainment systems like modern bikes.
Driver Assistance Features:
None. Motorcycle safety relies on rider skill and basic mechanical systems.
Connectivity Features:
None.
First Service:
Typically around 1,000 miles (1,600 km) for initial engine oil and filter change, and inspection.
Regular Oil Change:
Every 2,500 - 5,000 miles (4,000 - 8,000 km) or annually, whichever comes first, depending on riding conditions and oil type used.
Drive Belt Inspection:
Inspect for wear and tension at regular intervals, typically every 5,000 miles (8,000 km).
Brake Fluid Flush:
Recommended every 1-2 years to maintain system integrity and prevent corrosion.
Front Fork Oil:
Harley-Davidson Spectro Heavy Medium (or equivalent) 10W fork oil. Capacity is approximately 8.5-9.0 US fl oz (251-266 ml) per fork leg.
Brake Fluid:
DOT 4 Brake Fluid
Carburetor Tuning:
Keihin CV carburetors can require periodic adjustment or cleaning due to wear or varnish buildup.
Oil Leaks:
Common on older Harley-Davidsons; may require checking and tightening of oil lines, crankcase seals, and gaskets.
Electrical Connections:
Corrosion or looseness in electrical connectors can lead to intermittent issues.
Starter Clutch:
Wear can lead to slipping or grinding during engine starting.
Brand Legacy:
Harley-Davidson, established in 1903, boasts a rich history in American motorcycling, synonymous with V-twin engines and a distinct riding culture.
Evolution Platform:
The FXRS-SP is part of the Shovelhead/Evolution era of Harley-Davidson motorcycles, representing a transition towards more modern manufacturing and performance.
Production Period:
The FXRS-SP was produced within the broader FX line, which underwent continuous refinement throughout the 1980s and early 1990s.
Manufacturing Location:
York, Pennsylvania, USA and Milwaukee, Wisconsin, USA
