Harley Davidson FXS Shovelhead 1981 Service Repair Manual

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🏷️ Basic Information Identification Make: Harley-Davidson Model: FXS Low Rider Year: 1981 Engine Type: V-Twin, Air-Cooled Generation Shovelhead Generation: Shovelhead Codes Vin Prefix: 1HD 👋 Introduction Market Position Target Audience:...

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类型: Motorcycle

斯库: 484126

标签: 1981 FXS Shovelhead Harley Davidson Misc Motorcycle Motorcycles

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Description

🏷️ Basic Information

Identification

Make:

Harley-Davidson

Model:

FXS Low Rider

Year:

Engine Type:

V-Twin, Air-Cooled

Generation

Shovelhead Generation:

Shovelhead

Codes

Vin Prefix:

👋 Introduction

Market Position

Target Audience:

Harley-Davidson FXS Low Rider owners and independent mechanics

Value Proposition:

Empowering owners with the knowledge for self-sufficiency and cost-effective maintenance.

Competitive Analysis

Advantage Over Alternatives:

Comprehensive, digitally accessible, and cost-effective compared to physical manuals or dealership services.

Key Features

Accessibility:

Instant PDF download for immediate access.

Detail Level:

Focus on practical repair and maintenance procedures.

📋 Manual Details

Coverage Areas

Manual Type:

Service Repair Manual

Language:

English

Format:

Page Count

Estimated Pages:

300-500

📖 Manual Coverage

Systems Covered

Engine Disassembly Assembly:

Complete

Transmission Service:

Complete

Electrical System Troubleshooting:

Comprehensive

Fuel System Carburetion:

Detailed

Brake System Maintenance:

Thorough

Suspension And Forks:

In-depth

Frame And Bodywork:

Extensive

Wheels And Tires:

Detailed

Procedures Included

Routine Maintenance:

Included

Troubleshooting Guides:

Included

Rebuild Procedures:

Included

Diagnostic Flowcharts:

Included

Wiring Diagrams:

Included

Technical Depth

Diagnostic Capabilities:

Advanced

Repair Complexity:

Complete Overhaul

Technical Drawings Illustrations:

Extensive

📊 Manual Specifications

File Format

File Type:

Searchable Text:

Printable:

Print Quality

Image Resolution:

Binding Type

Binding:

Digital (PDF Download)

Paper Type

Paper Quality:

N/A (Digital)

⚙️ Engine Specifications

Primary Engine

Engine Family:

Shovelhead

Displacement:

73.6 cu in (1207 cc)

Bore X Stroke:

3.4375 in x 4.25 in (87.3 mm x 108.0 mm)

Compression Ratio:

8.0:1 (approx.)

Performance

Horsepower:

Approx. 60 hp @ 5000 rpm

Torque:

Approx. 65 ft-lbs @ 3200 rpm

Fuel System

Carburetor Type:

Keihin butterfly or Linkert (depending on specific build)

Fuel Type:

Unleaded gasoline, 87 octane (minimum)

Lubrication System

Oil Type:

Harley-Davidson 20W50, or equivalent API SG/SH rated motorcycle oil

Oil Capacity:

3.5 quarts (3.3 liters) with filter change

🔧 Transmission

Standard

Transmission Type:

4-Speed Constant Mesh

Optional

Optional Transmissions:

N/A for this model year and variant

Features

Clutch Type:

Wet, multi-plate

Transmission Fluid Type:

Harley-Davidson Hypoid Gear Oil (SAE 80W90) or equivalent API GL-4

📐 Dimensions

Exterior

Wheelbase:

62.5 inches (1588 mm)

Length:

90.1 inches (2289 mm)

Weights

Dry Weight:

Approx. 550 lbs (250 kg)

Gross Vehicle Weight Rating:

Approx. 960 lbs (435 kg)

🛡️ Safety Features

Ratings

Safety Ratings:

N/A (Motorcycle)

Active Features

Braking System:

Front: Disc brake; Rear: Disc brake

Lighting:

Halogen headlight, taillight, brake light, turn signals

Passive Features

Frame Construction:

Steel frame

💡 Technology Features

Infotainment

Infotainment System:

N/A (Basic cruiser instrumentation)

🔧 Maintenance

Service Intervals

Oil Change Interval:

Every 2,000 miles (3,200 km) or 6 months

Primary Chain Tensioner Check:

Every 5,000 miles (8,000 km)

Spark Plug Replacement:

Every 10,000 miles (16,000 km)

Drive Belt Tension Adjustment:

As needed, typically every 5,000 miles (8,000 km)

Fluid Specifications

Brake Fluid Type:

DOT 4, or DOT 3 if specified by original equipment manufacturer

Fork Oil Type:

Harley-Davidson Type 'E' (or equivalent SAE 10W fork oil)

Fork Oil Capacity:

Refer to manual, typically 8.5 fl oz per fork leg

Known Issues

Carburetor Tuning:

Frequent need for adjustment due to vibrations and fuel variability.

Oil Leaks:

Common at rocker boxes, crankcase seams, and pushrod tubes due to older gasket materials.

Primary Chain Tensioner:

Wear and tear on the automatic tensioner can lead to noise and clutch engagement issues.

Electrical Reliability:

Older wiring can degrade, leading to intermittent electrical faults.

📚 Vehicle History

Brand Heritage

Harley Davidson Legacy:

Iconic American motorcycle manufacturer with a rich history dating back to 1903.

Model Evolution

Fxs Low Rider Introduction:

Introduced in 1977 as a custom cruiser styling that diverged from traditional Harley designs.

Shovelhead Engine Era:

The Shovelhead engine, introduced in 1966, was the predecessor to the Evolution engine, produced until 1983.

Production

Production Years:

FXS Low Rider produced from 1977-1985

Manufacturing Location:

York, Pennsylvania, USA and Milwaukee, Wisconsin, USA

🏆 Awards & Recognition

Recognitions

Historical Significance:

The FXS Low Rider is recognized as a pivotal model in the evolution of American cruiser styling and a key vehicle in Harley-Davidson's history during a challenging period for the company.