Model Code:
FXR (Various sub-models like FXRS, FXRT, FXRD)
Production Years Covered:
1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994
Engine Types Covered:
All engine types within the specified years (primarily Evolution V-Twin, including 80 cubic inch / 1340cc variants)
Positioning:
The FXR Super Glide was a performance-oriented cruiser that appealed to riders seeking a more sporting ride compared to traditional Harley-Davidson models of the era. It occupied a unique niche, often favored by custom builders and riders who appreciated its handling characteristics.
Competitors:
Competed against other large-displacement cruisers and performance motorcycles, including Japanese offerings and other Harley-Davidson models with different design philosophies.
Frame Design:
Known for its revolutionary (at the time) 'Constant-Evolution' frame, which offered superior rigidity and handling compared to previous Harley-Davidson designs.
Engine Layout:
Air-cooled, 45-degree V-twin engine, the hallmark of Harley-Davidson.
Riding Experience:
Offered a more aggressive riding posture and better cornering clearance than many other Harley models, earning it the 'sport-tourer' or 'performance cruiser' moniker among enthusiasts.
User Benefit:
Empowers owners to perform their own maintenance and repairs, saving money and increasing understanding of their motorcycle's mechanics. Facilitates keeping a classic Harley-Davidson in optimal running condition.
Engine:
Complete overhaul, inspection, rebuild procedures for Evolution V-Twin engines (1340cc/80ci), including top-end, bottom-end, lubrication, cooling (oil cooling), and fuel delivery (carburetor specific to models).
Transmission:
Disassembly, assembly, inspection, and repair of the 5-speed constant mesh transmission (often referred to as the '4-speed' by some users due to older nomenclature, but internally a 5-speed unit). Includes clutch system, primary drive, and final drive (belt drive).
Electrical System:
Detailed wiring diagrams for all models, ignition system troubleshooting and repair, lighting, starting system, charging system (alternator/generator), instrumentation, and accessory circuits.
Chassis And Suspension:
Frame inspection and repair, front fork (Showa or Marzocchi depending on sub-model) overhaul, rear shock absorber replacement and adjustment, wheel bearing service, steering head bearing service.
Braking System:
Front and rear brake caliper service, master cylinder overhaul, brake line replacement, brake pad replacement, and bleeding procedures.
Fuel System:
Carburetor (e.g., Keihin CV) disassembly, cleaning, adjustment, and tuning. Fuel tank removal and inspection, fuel line maintenance.
Exhaust System:
Exhaust pipe and muffler inspection, removal, and replacement. Gasket service.
Bodywork:
Fairing (if equipped, e.g., FXRT), tank, fenders, seat, and side cover removal, installation, and basic repair considerations.
Troubleshooting:
Extensive diagnostic charts and procedures for common and uncommon issues across all systems.
Repair:
Step-by-step instructions for virtually all mechanical and electrical repairs, from minor adjustments to full engine and transmission rebuilds.
Maintenance:
Routine service tasks such as oil changes, filter replacements, chain adjustment (if applicable, though most were belt drive), spark plug replacement, brake fluid checks, and battery maintenance.
Disassembly And Assembly:
Detailed instructions for complete disassembly and reassembly of major components and sub-assemblies.
Specifications And Tolerances:
Precise torque values, clearances, fluid capacities, and other critical specifications for all procedures.
Depth:
Factory-level technical information, suitable for both professional mechanics and skilled DIY enthusiasts. Covers from basic tune-ups to complex engine internal work.
Illustrations And Diagrams
Visual Aids:
Includes clear step-by-step instructions, numerous photographs, diagrams, and detailed wiring schematics.
Engine Family:
Harley-Davidson Evolution (Evo)
Displacement:
80 cubic inches (1337.8cc)
Bore X Stroke:
3.496 in x 4.250 in (88.8 mm x 108 mm)
Compression Ratio:
Approximately 8.0:1 to 8.3:1 (can vary slightly by year/specific model)
Valve Train:
Overhead Valve (OHV), 2 valves per cylinder, pushrod actuated
Cooling System:
Air-cooled
Horsepower Estimate:
Approximately 65-70 HP at the crankshaft (varies by specific tuning and model year)
Torque Estimate:
Approximately 70-75 ft-lbs at the crankshaft (varies by specific tuning and model year)
Carburetor Type:
Typically Keihin butterfly-type constant velocity (CV) carburetor, often 40mm.
Fuel Delivery:
Gravity feed from fuel tank via carburetor
Type:
Electronic Ignition (points replaced with electronic modules)
Type:
5-speed, constant mesh, sequential gearbox
Primary Drive:
Gears, enclosed in primary cover, lubricated by primary chaincase oil.
Clutch Type:
Wet, multi-plate, diaphragm spring (often referred to as 'clutch pack')
Final Drive:
Belt drive (48.5mm wide belt typical)
Gear Ratios:
Specific ratios vary slightly by year and model, but typical for the era. Manual will detail exact ratios.
Transmission Fluid:
Often specified as Harley-Davidson Formula + or equivalent lubricant. Capacity around 1 quart (0.94 liters) for the primary/transmission.
Crash Test Ratings:
N/A (Motorcycles are not typically subjected to the same crash testing standards as automobiles).
Braking System:
Dual front disc brakes (on most models), single rear disc brake. Dual-action calipers.
Suspension:
Performance-tuned front forks and adjustable rear suspension contribute to stable handling.
Lighting:
Halogen headlight, taillight, brake light, and turn signals.
Frame:
Steel backbone frame designed for rigidity and rider confidence.
Oil Change:
Typically every 2,500 - 5,000 miles or annually, whichever comes first. Manual will specify exact intervals for engine oil and primary/transmission oil.
Spark Plugs:
Inspect and potentially replace every 5,000 - 10,000 miles. Manual will detail specific spark plug types and gaps.
Belt Drive:
Inspect belt tension and condition at regular intervals (e.g., every oil change). Adjustments as needed.
Brake Fluid:
Check level regularly, flush and replace every 1-2 years.
Engine Oil:
Typically Harley-Davidson 20W50 or equivalent motorcycle-specific oil. Capacity around 3 quarts (2.8 liters).
Primary Chaincase Oil:
Harley-Davidson Formula + or equivalent (doubles as transmission fluid). Capacity approx. 1 quart (0.94 liters).
Brake Fluid:
DOT 4 recommended for most models of this era.
Fork Oil:
Specific weight and quantity will be detailed in the manual, typically around 10-15 weight.
Common Wear Items:
Clutch plates, primary chain tensioner (hydraulic tensioner introduced later in the Evo era), valve guide seals, and front fork seals are common wear items.
Carburetor Tuning:
Keihin CV carburetors can require periodic adjustment or jetting changes depending on modifications or altitude.
Electrical Connections:
Aging electrical connectors can sometimes cause intermittent issues if not properly maintained or protected.
Cam Chain Tensioner:
Early Evolution engines used spring-loaded cam chain tensioners that could wear out, leading to noise. Later models incorporated hydraulic tensioners.
Brand Focus:
Harley-Davidson is renowned for its iconic V-twin engines, cruiser motorcycles, and a strong emphasis on rider lifestyle and community.
Fxr Lineage:
Introduced in 1982 as a departure from the traditional Big Twin FL/FX frames, the FXR line was designed for improved handling and sportier performance. The 1986-1994 period represents a significant era for the Evolution-powered FXR.
Engine Transition:
This period marks the transition from the Shovelhead engine to the new Evolution (Evo) engine, which became the standard for Harley-Davidson for many years.
Manufacturing Location:
United States (York, Pennsylvania and Milwaukee, Wisconsin are primary manufacturing sites for Harley-Davidson).
Legacy:
The FXR platform has a dedicated following and is highly regarded by many for its chassis dynamics, making it a popular choice for customization and a sought-after classic.
