1958-1959 Harley-Davidson Duo-Glide FL / FLH 74 OHV Repair Manual

1958-1959 Duo-Glide FL, Duo-Glide FLH 74 OHV repair manual documentation. Includes maintenance and repair information for the 74 OHV Duo-Glide models. PN 99482-59

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Document Details

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Document Number / Seller:
26901 / Carol Taylor
File Size:
13.29 MB
File Type:
ZIP
Language:
English
Printable:
Yes
Category:
Motorcycle
Last updated / verified
Oct 27, 2025

Models Covered & Key Technical Specifications

Harley-Davidson Duo-Glide FL, Duo-Glide FLH 74 OHV (99482-59) Manual: 1958-1959 Advanced Guide Library | Dossier.

  • Design Power Framework: 55.0 HP establishes the base engine output Specifications.
  • Specific Temperature Range: For optimal operation, 15-30C defines the environmental limit Metrics.
  • Essential Power Rating: 450 W -- signifies the active printing consumption Parameters.
  • Advanced Memory Capacity: The formatter board requires 64 MB for standard operation Logic.
  • Core Speed Performance: Maximum throughput reaches 25 ppm Parameters.
  • Engine Specificatios: 1212.7 cc provides the displacement for the V2 engine Configuration.

Manual Description & Preview

Harley-Davidson Duo-Glide FL / FLH 74 OHV Manual: 1958-1959 Documentation-Framework

Technical-Scope: 1958, 1959 Duo-Glide FL, FLH 74 OHV / Operational-Framework: Motorcycle / Engine Logic // Technical-Scope: English Language, 13.2854 MB File Size.

Integrated-Framework Technical-Path Context
Production Years 1958-1959 Manual Coverage
Engine Type V2, Four-Stroke, Panhead V-Twin Core Component
Horsepower 55.0 HP @ 4800 RPM Peak Output Performance
Torque 85.4 Nm @ 3200 RPM Rotational Force Measurement
Transmission 4-Speed Gear System
Cooling Air Cooled Thermal Management System

Repair data is categorized into

  • General: Covers basic specifications and troubleshooting.
  • Chassis: Details on wheels, brakes, and suspension systems.
  • Engine: In-depth information on the Panhead V-twin engine.
  • Transmission: Explains the 4-speed gearbox and clutch.
  • Electrical: Wiring diagrams, ignition, and charging systems.

This manual documents torque specifications for engine components to ensure proper axial load stability.

FAQ

Does this service manual contain detailed section chapters covering the engine and transmission specifications? keyboard_arrow_down

Document includes dedicated chapters for the engine and transmission, providing detailed specifications and technical data for these major systems.

What system areas does this technical manual provide the most in-depth coverage for? keyboard_arrow_down

Manual offers extensive coverage of the chassis and wheel systems, including detailed exploded views of hub components. It also features comprehensive electrical sections that include wiring diagrams for the referenced motorcycle models.

Which section lists the tire data and fluid capacity information? keyboard_arrow_down

General specification tables in the initial section of the manual contain tire data and relevant fluid capacity references.

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