Harley Davidson FLHS Shovelhead 1980 Service Repair Manual

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🏷️ Basic Information Identification Make: Harley-Davidson Model: FLHS Shovelhead Year: 1980 Family: Shovelhead Body Style: Touring Vin Prefix Codes: 1HD1 👋 Introduction Market Position Target Audience: Harley-Davidson owners, mechanics, and...

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类型: Motorcycle

斯库: 484091

标签: 1980 FLHS Shovelhead Harley Davidson Misc Motorcycle Motorcycles

产品多属性

Description

🏷️ Basic Information

Identification

Make:

Harley-Davidson

Model:

FLHS Shovelhead

Year:

Family:

Shovelhead

Body Style:

Touring

Vin Prefix Codes:

👋 Introduction

Market Position

Target Audience:

Harley-Davidson owners, mechanics, and enthusiasts looking for in-depth repair and maintenance guidance for their 1980 FLHS Shovelhead.

Competitive Analysis

Value Proposition:

Offers a cost-effective alternative to expensive dealership repairs, empowering owners to perform their own maintenance and repairs with confidence.

Key Features

Primary Benefit:

Enables DIY maintenance and repair, reduces reliance on professional services, and preserves the value of a classic motorcycle.

Format Advantage:

PDF format provides instant access, searchability, and portability compared to older printed manuals.

📋 Manual Details

Coverage Areas

Manual Type:

Service & Repair Manual

Language:

English

Format:

Digital Format Notes:

Searchable, printable

📖 Manual Coverage

Systems Covered

Engine:

Shovelhead V-Twin, including top end, bottom end, lubrication, cooling, and ignition system

Fuel System:

Carburetion (e.g., Keihin Butterfly), fuel lines, fuel pump, fuel tank, and petcock

Transmission:

4-speed constant mesh, clutch, primary drive, and final drive

Electrical System:

Wiring diagrams, battery, charging system (generator/alternator), starting system, lighting, ignition, and gauges

Brakes:

Front and rear brake systems (disc brakes), master cylinders, calipers, lines, and hydraulic components

Suspension:

Front fork (e.g., Glide fork), rear shock absorbers, swingarm, and related components

Chassis And Frame:

Frame, steering head, bearings, and related structural components

Bodywork And Trim:

Fenders, fuel tank, seat, fairing (if equipped), saddlebags, and trim pieces

Wheels And Tires:

Wheel bearings, spokes, tire types, and pressures

Procedures Included

Maintenance:

Scheduled maintenance, oil changes, filter replacements, lubrication, tune-ups, and pre-ride inspections

Troubleshooting:

Diagnostic procedures for common problems, symptom analysis, and root cause identification

Repair:

Step-by-step instructions for component removal, disassembly, inspection, repair, reassembly, and installation

Overhaul:

Complete engine and transmission rebuild procedures

Adjustment:

Carburetor adjustment, ignition timing, clutch and brake lever adjustments

Technical Depth

Depth:

Comprehensive (covers everything from routine maintenance to full engine rebuilds)

Diagnostic Tools:

Mentions required special tools and diagnostic techniques

Torque Specifications:

Includes detailed torque specifications for critical fasteners

Clearances:

Provides critical internal engine and transmission component clearances

📊 Manual Specifications

File Format

File Type:

Searchability:

Full text searchable

Printable:

Print Quality

Resolution:

High-resolution scans suitable for viewing on screens and printing

Binding Type

Original Binding:

Likely bound for durability (as a service manual)

Paper Type

Original Paper:

Durable, often cardstock or heavier paper stock for cover, with high-quality paper for internal pages.

⚙️ Engine Specifications

Primary Engine

Engine Type:

Air-cooled, 45-degree V-twin, OHV

Displacement:

74 cubic inches (1208 cc)

Bore X Stroke:

3.4375 in x 4.25 in (87.3 mm x 108 mm)

Compression Ratio:

Typically around 8.0:1 (varies slightly)

Valve Train:

Overhead Valve (OHV) with pushrods and rockers

Performance

Horsepower:

Approx. 60-65 hp @ 5000-5500 rpm (est.)

Torque:

Approx. 70-75 lb-ft @ 3000-4000 rpm (est.)

Fuel System

Carburetor:

Keihin Butterfly CV (Constant Velocity) Carburetor, typically 36mm or 40mm

Fuel Type:

Unleaded gasoline, 90+ octane recommended

Fuel Pump:

Mechanical diaphragm fuel pump

Ignition System

Ignition Type:

Contactless electronic ignition (often with points in earlier versions, but 1980 likely electronic)

Lubrication System

Oil Capacity:

Approx. 3 quarts (2.8 liters) with filter change

Oil Type:

Harley-Davidson 20W50 motorcycle oil or equivalent API SG or higher

Oil Filter:

Spin-on oil filter (e.g., Harley-Davidson P/N 63796-77 or equivalent)

🔧 Transmission

Standard

Type:

4-speed constant mesh, foot shift, hand clutch

Features

Primary Drive:

Duplex chain, wet clutch

Final Drive:

Belt drive

Fluid Capacity

Transmission Oil Capacity:

Approx. 1 quart (0.95 liters)

Fluid Specifications

Transmission Oil Type:

Harley-Davidson primary chaincase lubricant, SAE 50, or equivalent API GL-1 gear oil

📐 Dimensions

Exterior

Wheelbase:

Approx. 62.5 inches (1588 mm)

Length:

Approx. 92.5 inches (2350 mm)

Width:

Approx. 35 inches (889 mm) at handlebars

Height:

Approx. 55 inches (1397 mm) at windshield

Cargo

Saddlebags:

Standard fitted saddlebags (capacity varies by design)

Weights

Dry Weight:

Approx. 650-700 lbs (295-318 kg) (varies with equipment)

Fuel Tank Capacity:

Approx. 5 gallons (18.9 liters)

Tire Size Front:

3.00-16 or 3.50-16

Tire Size Rear:

4.00-18 or 4.25-18

Wheel Bolt Pattern:

N/A (Spoked wheels with axle mounting)

🛡️ Safety Features

Ratings

Crash Test Ratings:

Not applicable for motorcycles of this era.

Active Features

Braking System:

Hydraulic disc brakes front and rear

Lighting:

Headlight, taillight, brake light, turn signals

Passive Features

Frame Construction:

Steel frame and swingarm designed for stability.

Horn:

Standard horn

💡 Technology Features

Infotainment

Audio System:

Optional factory or aftermarket radio and speaker systems were common on touring models, though not standard on all FLHS variants.

Driver Assistance

Anti-lock Braking System (ABS) was not available on 1980 models.

Connectivity

Cruise Control:

Cruise control was typically not a factory option on 1980 models, but could be added as an aftermarket accessory.

🔧 Maintenance

Service Intervals

Initial Service:

Typically at 500 miles (800 km) - includes engine oil change, primary chaincase oil change, and inspection.

Regular Oil Change:

Every 2,000 - 3,000 miles (3,200 - 4,800 km) or annually, whichever comes first.

Primary Chaincase Oil Change:

Every 2,000 - 3,000 miles (3,200 - 4,800 km) or annually.

Spark Plugs:

Inspect and clean every 2,000 miles, replace as needed (recommend specific part numbers like Champion RJ12YC or NGK D8EA).

Air Filter:

Inspect every 2,000 miles, clean or replace as needed depending on operating conditions.

Belt Drive Tension:

Check and adjust belt tension every 2,000 miles.

Brake Fluid:

Inspect fluid level and condition every 2,000 miles, flush and replace every 2 years.

Fluid Specifications

Engine Oil:

Harley-Davidson 20W50 Motorcycle Oil or SAE 20W50 API SG or higher

Primary Chaincase Oil:

Harley-Davidson Primary Chaincase Lubricant, SAE 50, or equivalent API GL-1 gear oil

Fork Oil:

Specific weight fork oil (e.g., SAE 10W) as recommended by Harley-Davidson for that year.

Brake Fluid:

DOT 3 or DOT 4 brake fluid

Known Issues

Shovelhead Characteristics:

Shovelheads are known for their distinct character but can be prone to oil leaks from various seals and gaskets, especially as they age. Valve adjustments may be more frequent than modern engines.

Primary Drive Tension:

Correct primary drive chain tension is crucial to prevent premature wear on the chain, sprockets, and clutch components.

Carburetor Tuning:

CV carburetors require periodic adjustment to maintain optimal performance and fuel efficiency. Tuning may be affected by altitude and modifications.

Ignition Timing:

Proper ignition timing is critical for starting, smooth running, and preventing detonation. The manual will detail the procedure for setting this.

📚 Vehicle History

Brand Heritage

Manufacturer:

Harley-Davidson Motor Company, Milwaukee, Wisconsin, USA

Legacy:

Iconic American motorcycle manufacturer with a long history of V-twin engines and touring motorcycles.

Model Evolution

Shovelhead Era:

The Shovelhead engine, produced from 1966-1984, was a significant evolution of the Panhead engine, known for its distinctive 'shovel' shaped rocker boxes.

Flhs Designation:

FLHS (FL = Big Twin chassis, H = Hydraulically assisted rear suspension, S = Stretched or Special) was typically a touring model with a larger fairing and saddlebags.

Production

Production Years:

The FLHS model was produced intermittently throughout the Shovelhead era, with 1980 being a specific year of production.

🏆 Awards & Recognition

Recognitions

Motorcycle Classics:

The Shovelhead era Harley-Davidsons are considered classic motorcycles and are highly sought after by collectors and enthusiasts for their historical significance and raw riding experience.