1979 390 CR Husqvarna Husky Parts Catalogue

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Type: Motorcycle

Vendor:

Sku: 131966

Tags: 1979 390 390 CR Chainsaws Home and Garden Husqvarna Husqvarna Husky Motorcycle Power Equipment

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Description

This document provides comprehensive parts identification for the 1979 motocross motorcycle. With its rich heritage in off-road racing, competitive and robust machines were produced, and the 390 CR is a prime example from their successful 'CR' line. This model, a 2-stroke, single-cylinder air-cooled machine, was a formidable presence in the motocross scene of its era, known for its performance and durability. The 390 CR is a highly sought-after motorcycle by vintage racing enthusiasts and collectors, representing a significant piece of off-road motorsport history. This parts catalogue is an essential resource for owners and mechanics seeking to maintain and restore the 1979 390 CR. It features detailed exploded diagrams of all major components, including engine, transmission, chassis, wheels, brakes, fuel, electrical, and bodywork systems, each clearly assigned a unique part number. This precise part identification is crucial for ensuring the correct sourcing of replacement parts, facilitating accurate assembly, and ultimately preserving the integrity and performance of this classic motocross machine. The catalogue is presented in English.

🏷️ Basic Information

Identification

Make:

Husqvarna

Model:

390 CR

Year:

Product Type:

Parts Catalogue

👋 Introduction

Market Position

Market Position:

Essential resource for owners and mechanics of vintage Husqvarna motocross machinery, specifically the 1979 390 CR model.

Competitive Analysis

Value Proposition:

Provides critical part numbers to avoid incorrect purchases and ensure proper restoration or repair of a classic motocross bike. Highly valuable for enthusiasts and mechanics specializing in vintage European off-road motorcycles.

Key Features

Key Features:

Instant digital download, detailed exploded diagrams, comprehensive part numbering system.

📋 Manual Details

Coverage Areas

Coverage Summary:

Comprehensive parts identification for the 1979 Husqvarna 390 CR motocross motorcycle.

Page Count

Estimated Page Count:

Likely between 100-250 pages (typical for a vintage motorcycle parts catalog of this era).

Manual Type

Manual Type:

Parts Catalogue/Parts Manual

Language

Language:

English (Assumed based on typical market for such manuals).

Format

Format:

PDF (Digital Download)

📖 Manual Coverage

Systems Covered

Engine Components:

Cylinder, piston, crankshaft, connecting rod, bearings, seals, gaskets, intake system (carburetor, reed valve), exhaust system.

Transmission Components:

Gearbox internals (gears, shafts, selector forks), clutch assembly (plates, springs, basket, hub), kickstart mechanism.

Chassis Components:

Frame, swingarm, linkage, front forks (internals, seals), rear shock absorber (if applicable for the era/model variant), triple clamps.

Wheels And Brakes:

Rims, spokes, hubs, wheel bearings, front brake system (drum or disc depending on variant), rear brake system (drum), brake linkage, levers.

Fuel System:

Fuel tank, fuel lines, petcock, carburetor components (jets, needles, float bowl).

Electrical System:

Ignition system components (magneto, coil, spark plug), lighting (if applicable), wiring harness (schematics may not be in a parts catalog but components are listed).

Controls And Linkages:

Handlebars, levers (clutch, brake), throttle control, gear shift lever, brake pedal, footpegs, cables.

Bodywork And Plastics:

Fuel tank, seat, fenders (front and rear), side panels, airbox cover, chain guard.

Procedures Included

Part Identification:

Detailed diagrams with exploded views showing the relationship of all parts. Each part is assigned a unique part number.

Part Ordering:

Facilitates ordering correct replacement parts by providing exact part numbers.

Assembly Disassembly Reference:

While not a step-by-step repair manual, the exploded diagrams provide visual cues for proper assembly and disassembly order.

Technical Depth

Technical Depth:

Focused on parts identification and referencing. Does not provide detailed repair instructions, torque values, or diagnostic procedures, but is essential for accurate part sourcing.

📊 Manual Specifications

File Format

File Format:

Searchable Text:

Likely searchable, depending on the quality of the scan and OCR processing.

Print Quality

Print Quality:

Variable (depends on original source and scanning quality). High-resolution PDFs are ideal.

Binding Type

Binding Type:

N/A (Digital Download)

Paper Type

Paper Type:

N/A (Digital Download)

⚙️ Engine Specifications

Primary Engine

Engine Type:

2-stroke, Single-cylinder

Engine Displacement:

390cc (Approximate, variations may exist)

Bore X Stroke:

Refer to specific model service manual for exact dimensions, as this is a parts catalog.

Cooling System:

Air-cooled

Performance

Horsepower:

Estimates for 1979 390cc models range from 40-45 HP, but this is not specified in a parts catalog.

Torque:

Not specified in a parts catalog.

Fuel System

Carburetor:

Likely a large-bore Dell'Orto or Bing carburetor (e.g., 36mm or 38mm). Specific model number will be in the catalog.

Fuel Type:

Pre-mix gasoline/oil

🔧 Transmission

Standard

Transmission Type:

6-speed, constant mesh sequential manual gearbox

Optional

Optional Gearbox Ratios:

Specific gear ratios would be detailed in a service manual, but component parts are listed here.

Features

Clutch Type:

Wet, multi-plate, cable-actuated

📐 Dimensions

Exterior

Wheelbase:

Refer to specific model service manual for exact dimensions.

Seat Height:

Refer to specific model service manual for exact dimensions.

Weights

Dry Weight:

Approximately 230-250 lbs (105-113 kg) for similar models of this era. Exact spec not in parts catalog.

🛡️ Safety Features

Ratings

Safety Standards:

N/A (Vintage motocross equipment not subject to modern automotive safety rating systems).

Active Features

Braking System:

Front and rear drum brakes (typical for the era). Disc front brake was an option or introduced in later years for some models. Catalog will specify exact parts for the fitted system.

Passive Features

Frame Construction:

Chromoly steel frame, designed for durability and rigidity in off-road conditions.

💡 Technology Features

Infotainment

Infotainment System:

N/A (Vintage motocross motorcycle).

Driver Assistance

Rider Aids:

N/A (Vintage motocross motorcycle).

Connectivity

Connectivity Features:

N/A (Vintage motocross motorcycle).

🔧 Maintenance

Service Intervals

Tune Up Interval:

Refer to a dedicated service manual. Typical for a 2-stroke motocross bike: piston/ring inspection every 20-40 hours, top-end rebuilds every 40-80 hours.

Oil Change Interval:

Gearbox oil change: typically every 10-20 hours of riding. Clutch slave cylinder and chain case lube points are also critical.

Fluid Specifications

Gearbox Oil Type:

API GL-4 or GL-5 gear oil, SAE 75W/90 or 80W/90 recommended. Consult a service manual for precise viscosity. Capacity typically around 700-800ml.

2-Stroke Oil Mix:

High-quality synthetic 2-stroke oil for premix, typically mixed at 32:1 or 40:1 ratio. Always verify with a service manual.

Fork Oil Type:

Specific fork oil viscosity (e.g., 5W, 10W) and quantity per leg are critical and detailed in the service manual, not typically in a parts catalog.

Known Issues

Common Wear Items:

Piston rings, clutch plates, wheel bearings, steering head bearings, fork seals, swingarm bushings, ignition points (if applicable). This parts catalog is vital for replacing these.

Carburetor Tuning:

Proper jetting and needle selection for the specific riding conditions and exhaust system is crucial for optimal performance and engine longevity. Parts for the carburetor are listed here.

📚 Vehicle History

Brand Heritage

Brand Heritage:

Husqvarna has a long and storied history in off-road and motocross racing, dating back to the early 20th century. Renowned for their robust and competitive machines.

Model Evolution

Model Evolution:

The 390 CR was part of Husqvarna's successful 'CR' (Competition Replica) line, evolving from earlier displacements and chassis designs to meet the demands of competitive motocross.

Production

Production Years:

The 390cc engine displacement was popular in the late 1970s and early 1980s for Husqvarna motocross bikes. The 1979 model year is a specific iteration.

Manufacturing Location:

Sweden (Husqvarna motorcycles are historically manufactured in Sweden).

🏆 Awards & Recognition

Recognitions

Racing Heritage:

Husqvarna models from this era were highly competitive in various motocross and enduro racing disciplines worldwide, winning numerous championships. This parts catalog supports the maintenance of such successful machines.

Ratings

Vintage Status:

Highly sought after by vintage motocross enthusiasts and collectors.