Vehicle Category:
Cruiser / Custom Motorcycle
Target Audience:
Enthusiasts, mechanics, and DIY owners of the 1974 Harley-Davidson Super Glide FX.
Key Selling Point:
Authentic factory service information, ensuring accurate and reliable repairs.
Manual Value:
Essential for preserving the originality and functionality of a classic Harley-Davidson.
Engine System:
Full engine disassembly, assembly, inspection, and repair, including the Shovelhead engine components.
Transmission System:
Four-speed transmission service, including internal components, clutch, and primary drive.
Electrical System:
Wiring diagrams, ignition system service, lighting, charging system (generator/regulator), starter motor, and battery maintenance.
Fuel System:
Carburetor (likely Linkert or early Keihin) service, fuel tank and lines, and fuel pump operation.
Suspension System:
Front fork (leading-link or early telescopic) overhaul, rear shock absorber service, and frame inspection.
Brake System:
Front and rear brake service, including drum brake adjustment, caliper inspection (if applicable), and hydraulic fluid replacement.
Chassis And Bodywork:
Frame maintenance, body panel removal and installation, seat, fenders, handlebars, and control cables.
Maintenance Procedures:
Routine maintenance, lubrication schedules, fluid changes, filter replacements, ignition timing adjustments, carburetor tuning.
Repair Procedures:
Detailed step-by-step instructions for engine rebuilds, transmission overhauls, electrical component repair, and chassis component replacement.
Troubleshooting Guidance:
Diagnostic charts and symptom-based troubleshooting for common mechanical and electrical issues.
Inspection Checks:
Pre-ride inspections, component wear checks, torque specifications for critical fasteners.
Special Tool Requirements:
Identification and use of specialized tools required for specific repair and maintenance tasks.
Depth Level:
Comprehensive Factory Level - Covers everything from basic adjustments to complete engine and transmission rebuilds.
Print Quality:
High-quality print, designed for readability in a workshop environment.
Paper Type:
Durable, shop-grade paper to withstand grease and frequent use.
Binding:
Likely a sturdy paperback or spiral-bound format for lay-flat use.
Engine Type:
Air-cooled, 45-degree V-twin, OHV
Displacement:
74 cubic inches (1213 cc)
Bore X Stroke:
3.4375 in. x 4.25 in. (87.3 mm x 108 mm)
Compression Ratio:
Approximately 8.0:1 (varies slightly)
Horsepower Estimate:
Around 60 HP @ 5500 RPM (estimated, not officially published in modern terms)
Torque Estimate:
Around 75 ft-lbs @ 3500 RPM (estimated)
Carburetor:
Likely a Linkert M74 or early Keihin butterfly carburetor.
Fuel Type:
Unleaded gasoline (premium recommended)
Fuel Capacity:
Approximately 4.0 US gallons (15.1 L)
Transmission Type:
4-speed constant mesh, foot-shift, hand-clutch operation.
Optional Transmission:
N/A for 1974 FX Super Glide
Primary Drive:
Duplex chain, dry clutch
Transmission Fluid Type:
Motorcycle-specific 4-speed transmission oil (refer to manual for specific viscosity, e.g., SAE 50 or 60)
Wheelbase:
Approximately 62.5 inches (1588 mm)
Length:
Approximately 90 inches (2286 mm)
Ground Clearance:
Approximately 4.5 inches (114 mm)
Dry Weight:
Approximately 570 lbs (259 kg)
Gross Vehicle Weight Rating:
Not typically specified in modern terms, but owner/cargo limit should be considered.
Safety Standards:
Manufactured to standards applicable for the era; lacks modern safety ratings (ABS, traction control).
Braking System Type:
Drum brakes front and rear.
Lighting:
Headlight, taillight, brake light, turn signals.
Oil Change Interval:
Typically every 2,000 to 3,000 miles or seasonally (refer to manual for exact specification).
Primary Chain Tension Check:
Check and adjust as needed, often every 1,000 to 2,000 miles.
Ignition Timing Adjustment:
As required, typically checked annually or if performance issues arise.
Engine Oil Type:
Motorcycle-specific V-twin engine oil, typically SAE 20W-50 or similar (refer to manual for exact viscosity and API rating).
Brake Fluid Type:
DOT 3 or DOT 4 hydraulic brake fluid (ensure compatibility with seals).
Transmission Fluid Type:
Motorcycle-specific 4-speed transmission oil (e.g., SAE 50 or 60, check manual for specific recommendation).
Primary Chain Case Oil Type:
Motorcycle-specific primary chain case oil or transmission oil (check manual for recommendation, often shares fluid with transmission).
Shifter Mechanism:
Potential wear in the shifter pawl and quadrant, leading to missed shifts or difficulty shifting.
Carburetor Tuning:
Linkert carburetors can be finicky and require precise adjustment for optimal performance and starting.
Electrical Gremlins:
Aging wiring harnesses and components can lead to intermittent electrical issues.
Pushrod Tube Seals:
Leaking pushrod tube seals are a common issue requiring replacement.
Generator Charging System:
Early generator systems can be less robust than later alternator systems and may require more frequent maintenance.
Brand Founding:
Founded in 1903 in Milwaukee, Wisconsin.
Super Glide Introduction:
The FX Super Glide was introduced in 1971, designed by Willie G. Davidson, and represented a significant styling departure for Harley-Davidson with its boat-tail tailpiece and unique styling cues.
1974 Specifics:
The 1974 model year saw the continuation of the Shovelhead engine and the FX chassis, often featuring a more conventional rear fender design compared to the earlier boat-tail models, while retaining the distinctive Super Glide styling.
Manufacturing Location:
Milwaukee, Wisconsin, USA
