Category:
Off-road Motorcycle Parts Catalogue
Target Audience:
Husqvarna WR motorcycle owners, vintage motorcycle restorers, specialized mechanics, parts suppliers
Value Proposition:
Essential tool for identifying and sourcing hard-to-find original parts for vintage Husqvarna WR models, enabling accurate repairs and restorations.
Feature 1:
Comprehensive exploded diagrams for visual part identification.
Feature 2:
OEM part number listings for precise part ordering.
Feature 3:
Covers a range of WR models, providing broad utility for owners of this era of Husqvarna.
Engine Coverage:
Complete engine component identification and parts listing
Chassis Coverage:
Frame, suspension (front forks, rear shocks), wheels, brakes, handlebars, footpegs
Drivetrain Coverage:
Clutch, gearbox (wide ratio transmission components), final drive (chain, sprockets)
Fuel System Coverage:
Carburetor components, fuel tank, fuel lines
Electrical System Coverage:
Ignition system components, lighting (if applicable), wiring harness (component identification)
Bodywork Coverage:
Fenders, seat, fuel tank graphics/badges, side panels
Estimated Page Count:
Variable (typical for parts catalogues, likely 100-200+ pages depending on specific models covered)
Type:
Parts Catalogue / Parts Manual
Engine Systems:
Cylinder, piston, crankshaft, connecting rod, bearings, seals, gaskets, cooling (air-cooled), exhaust system components
Transmission Systems:
Gear sets, shift drum, shift forks, clutch plates, clutch basket, primary drive gear, output shaft, input shaft, gearbox bearings and seals
Suspension Systems:
Front fork internals (springs, dampers, seals), rear shock absorber components (springs, seals, damping rods), linkage components (if applicable)
Braking Systems:
Drum brake components (shoes, springs, actuators), brake levers, brake cables
Electrical Systems:
Magneto ignition components, spark plug, HT lead, ignition coil, wiring loom connectors (identification)
Identification Procedures:
Detailed exploded diagrams for component identification, OEM part number cross-referencing
Assembly Disassembly Guides:
Visual guides to component relationships and assembly order for parts ordering
Maintenance Part Ordering:
Facilitates identification and ordering of specific replacement parts for maintenance and repair
Depth:
Component-level identification and part number specification for all major mechanical and chassis systems. Not a diagnostic or repair procedure manual.
Engine Type:
2-stroke, air-cooled
Displacement Range:
Typically 250cc, 360cc, 390cc, 420cc, 450cc for WR models of this era (excluding the 125cc models)
Power Output:
N/A (Parts Catalogue format)
Torque Output:
N/A (Parts Catalogue format)
Carburetor Type:
Typically Mikuni or Bing (specific models vary)
Fuel Delivery:
Carburetor
Safety Ratings:
N/A (Vintage Off-Road Motorcycle)
Active Safety Features:
None specifically documented, relies on rider skill and mechanical condition.
Passive Safety Features:
Frame integrity, effective braking (for the era), suspension components.
Spark Plug Replacement:
N/A (Parts Catalogue format)
Piston Ring Replacement:
N/A (Parts Catalogue format)
Engine Oil Type:
Pre-mix fuel/oil (specific ratio recommended, typically 25:1 or 40:1 with high-quality 2-stroke oil). Oil for gearbox/clutch is separate.
Gearbox Oil Type:
SAE 80W gear oil or equivalent (specific viscosity may be listed in an accompanying service manual).
Common Wear Items:
Clutch plates, piston rings, crank seals, wheel bearings, steering head bearings, swingarm pivot bearings, fork seals.
Potential Failures:
Cracked crankcases due to vibration or impact, gearbox wear, ignition system component failure (magneto).
Brand Origins:
Husqvarna Motorcycles is one of the oldest motorcycle manufacturers in the world, founded in Sweden in 1689 (initially as a weapons manufacturer). Motorcycle production began in 1903.
Wr Series Evolution:
The WR (Wide Ratio) series was developed for enduro and cross-country riding, offering a broader gear spread than dedicated motocross models. The 1974 models represent a significant period of Husqvarna's dominance in off-road racing.
Manufacturing Location:
Sweden
Production Era:
Mid-1970s, a period of significant development and competition in European off-road motorcycle manufacturing.
