Motorcycle Segment:
Cruiser/Standard motorcycle
Competitors 1986:
Other American V-twin motorcycles, Japanese inline-fours and V-twins in a similar displacement range (e.g., Yamaha Virago, Honda Shadow, Kawasaki Vulcan).
Sportster Identity:
Known for its iconic V-twin engine, lightweight chassis relative to larger Harley-Davidson models, and customisable platform.
Manual Value:
Essential for owners and mechanics to maintain, repair, and troubleshoot the 1986 Sportster, ensuring longevity and optimal performance of this classic American motorcycle.
Engine Service:
Complete overhaul, troubleshooting, carburetor tuning (e.g., Keihin butterfly, CV carbs), ignition system (points, electronic), oil system, cooling system (air-cooled), piston and cylinder reconditioning, valve train service, timing.
Transmission Service:
4-speed and 5-speed transmission (depending on specific XLH variant) overhaul, clutch service, gear inspection, bearing replacement, lubrication.
Electrical System:
Wiring diagrams, lighting systems, charging system (stator, regulator/rectifier), starting system (starter motor, solenoid), battery service, ignition system troubleshooting, instrument cluster.
Chassis And Suspension:
Frame inspection and repair, front fork service (telescopic forks, seals, oil), rear shock absorber service, wheel bearings, steering head bearings, swingarm service.
Braking System:
Front and rear brake system service (drum brakes and early disc brakes depending on model variant), hydraulic fluid flush and bleed, caliper and master cylinder overhaul, brake pad/shoe replacement.
Fuel System:
Fuel tank inspection, fuel lines, fuel petcock service, carburetor disassembly and cleaning/rebuilding.
Exhaust System:
Exhaust pipe and muffler service, gasket replacement.
Bodywork And Trim:
Fender removal and installation, seat service, minor body panel adjustments, trim piece identification.
Routine Maintenance:
Oil changes, filter replacements, spark plug replacement, chain adjustment (if applicable), air filter cleaning/replacement, brake fluid checks.
Troubleshooting Guides:
Step-by-step diagnostic procedures for common issues related to starting, running, electrical faults, and braking.
Rebuilding Procedures:
Detailed instructions for rebuilding key components such as carburetors, brake calipers, master cylinders, and potentially engine components.
Assembly And Disassembly:
Comprehensive guides for the safe and correct disassembly and reassembly of all major motorcycle systems.
Performance Tuning:
Guidance on carburetor adjustments and timing for optimal engine performance.
Depth Of Coverage:
Full mechanical and electrical overhaul, detailed diagnostics, component-level repair, and performance tuning.
Diagnostic Procedures:
Detailed procedures for diagnosing electrical and mechanical faults, including common symptoms and their probable causes.
Specifications Charts:
Includes torque specifications for critical fasteners, clearances, fluid capacities, and electrical resistance values.
Engine Type:
Air-cooled, 45-degree V-twin
Engine Displacement Xl:
883cc (53.9 cu in)
Engine Displacement Xlh:
1100cc (67.1 cu in)
Bore Stroke 883:
76.2 mm x 96.8 mm (3.00 in x 3.81 in)
Bore Stroke 1100:
80.0 mm x 108.0 mm (3.15 in x 4.25 in)
Compression Ratio 883:
8.0:1
Compression Ratio 1100:
8.0:1
Engine Build:
Pushrod actuated overhead valves (OHV), 2 valves per cylinder
Horsepower 883 Approx:
48-55 hp
Horsepower 1100 Approx:
60-65 hp
Torque 883 Approx:
56-60 ft-lbs
Torque 1100 Approx:
65-70 ft-lbs
Carburetor Type:
Keihin butterfly or constant velocity (CV) carburetor
Carburetor Size 883:
34mm
Carburetor Size 1100:
36mm
Fuel Type:
Unleaded gasoline, minimum 87 octane (check manual for specifics)
Transmission Type Xl:
4-speed manual constant mesh
Transmission Type Xlh:
5-speed manual constant mesh
Clutch Type:
Multi-plate, wet clutch operated by cable
Primary Drive:
Duplex chain drive to clutch basket
Final Drive:
Belt drive or chain drive (depending on specific model variant)
Transmission Oil Type:
API GL-4 SAE 80W or 85W gear oil (check manual for exact specification and capacity)
Crash Safety Ratings:
N/A for motorcycles of this era; safety is primarily based on rider skill and vehicle design features.
Braking System:
Front disc brake, rear drum brake (or dual disc on some later models/variants).
Lighting:
Headlight, tail/brake light, turn signals, running lights.
Frame Construction:
Steel frame designed for rigidity and rider support.
Infotainment System:
None (classic motorcycle design focused on mechanicals).
Driver Assistance Features:
None (classic motorcycle design).
Connectivity Features:
None (classic motorcycle design).
Instrument Cluster:
Analog speedometer, tachometer (optional on some models), odometer, indicator lights (oil pressure, neutral, turn signals, high beam).
First Service:
1000 miles (1600 km) or 6 months, whichever comes first (includes engine oil/filter change, check primary chain tension, inspect brakes).
Subsequent Oil Changes:
Every 2500-3000 miles (4000-4800 km) or 6 months, whichever comes first.
Major Service Intervals:
Refer to manual for specific intervals for valve adjustments, transmission service, and carburetor tuning (typically around 7500-10000 miles).
Engine Oil Type:
Harley-Davidson recommended V-Twin specific oil or equivalent API SF/SG 20W-50 motorcycle oil.
Transmission Oil Type:
API GL-4 SAE 80W or 85W gear oil.
Primary Chain Case Oil:
Harley-Davidson primary chain oil or equivalent SAE 20W-50 motorcycle oil.
Brake Fluid Type:
DOT 3 or DOT 4 hydraulic brake fluid (check manual for specific system requirement).
Common Wear Items:
Cam bushings, primary chain tensioner, wheel bearings, fork seals, carburetor diaphragm (on CV carbs).
Ignition System Notes:
Points-based ignition systems require regular timing checks and adjustment. Early electronic ignition systems may require testing of the ignition module and pickup coil.
Carburetor Performance:
Carburetors can be prone to gumming if not used regularly; proper cleaning and adjustment are critical for smooth operation.
Oil Leaks:
Can occur at primary cover, transmission seals, and rocker boxes; requires careful inspection and gasket replacement.
Harley Davidson Legacy:
Founded in 1903, Harley-Davidson is an iconic American motorcycle manufacturer renowned for its V-twin engines and classic styling.
Sportster Lineage:
The Sportster line, introduced in 1957, has been a staple for Harley-Davidson, evolving from its 'K-Model' roots to become a versatile and accessible platform.
1986 Updates:
The 1986 model year saw the introduction of the 1100cc engine for the XLH models, replacing the previous 1000cc. This era also saw the transition from points ignition to electronic ignition on many models.
Manufacturing Location:
USA