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1980 Husqvarna 125 240 250 and 390 CR parts Manual

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The 1980 CR series, encompassing the CR 125, CR 240, CR 250, and CR 390 models, represents a significant era in off-road motorcycle engineering. These machines were celebrated for their...
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Taper: Motorcycle
Distributeur:
Husqvarna
UGS: 119990
Mots clés: 125 CR 1980 240 CR 250 CR 390 390 CR Chainsaws Home and Garden Husqvarna Motorcycle Power Equipment
1980 Husqvarna 125 240 250 and 390 CR parts Manual
The 1980 CR series, encompassing the CR 125, CR 240, CR 250, and CR 390 models, represents a significant era in off-road motorcycle engineering. These machines were celebrated for their potent two-stroke engines, robust construction, and advanced suspension systems, establishing the brand as a formidable competitor in motocross and enduro racing. Renowned for their Swedish heritage of quality and performance, these models offered riders a distinct advantage with their powerful drivetrains and agile handling, making them highly sought after by enthusiasts and professionals alike. This Parts Manual provides comprehensive coverage for all components and assemblies of the 1980 CR models. Its purpose is to facilitate accurate part identification, cross-referencing, and ordering, essential for maintaining, restoring, or repairing these classic motorcycles. The manual features detailed exploded views, part numbers, and descriptions for the engine, transmission, chassis, suspension, brakes, and electrical systems, serving as an indispensable resource for owners, mechanics, and restoration specialists.
🏷️ Basic Information
Identification
Make:
Husqvarna
Model:
CR 125, CR 240, CR 250, CR 390
Year:
1980
Generation
Model Generation:
Second Generation CR (1977-1980)
Codes
Vin Decoder Note:
VIN decoding for specific model variants within the 1980 lineup would require a dedicated VIN decoder, but generally follows HUSQVARNA XXXXXXXXXXX where the 10th digit indicates the model year (0 for 1980).
👋 Introduction
Market Position
Market Position:
The 1980 Husqvarna CR series represented the pinnacle of off-road motocross and enduro performance from the Swedish manufacturer during a highly competitive era. These bikes were renowned for their robust construction, potent two-stroke engines, and excellent suspension, making them sought-after by serious riders.
Competitive Analysis
Competitive Analysis:
Competed directly with Japanese manufacturers like Yamaha (YZ series), Suzuki (RM series), and Honda (CR series), as well as European counterparts such as KTM and Maico. Husqvarna distinguished itself with its distinctive styling and a reputation for durable, powerful engines.
Key Features
Key Features:
Liquid-cooled engines (on some larger displacements), advanced telescopic forks, rising rate rear suspension (on some models), powerful disc or drum braking systems, and lightweight chassis design. This parts manual is crucial for maintaining these high-performance machines.
📋 Manual Details
Coverage Areas
Coverage Areas:
Complete coverage of all parts and assemblies for the 1980 Husqvarna CR 125, 240, 250, and 390 models. Includes engine, transmission, chassis, suspension, brakes, electrical system, bodywork, and accessories.
Page Count
Page Count:
98
Manual Type
Manual Type:
Official Parts Manual / Catalog
Language
Language:
English
Format
Format:
PDF
📖 Manual Coverage
Systems Covered
Systems Covered:
Engine (cylinder, piston, crankshaft, connecting rod, carburetor, ignition, exhaust), Transmission (gearbox, clutch, shift mechanism), Chassis (frame, subframe, swingarm, footpegs), Suspension (fork, rear shocks, linkages), Brakes (front and rear drums, control levers, cables), Wheels & Tires (rims, spokes, hubs, tire sizes), Electrical System (lighting, wiring harness, ignition components), Fuel System (tank, petcock, fuel lines), Controls (handlebars, grips, cables), Bodywork (fenders, seat, tank covers, number plates), Cooling System (air-cooled), Lubrication System (pre-mix).
Procedures Included
Procedures Included:
Part identification and cross-referencing, assembly order visualization, component ordering assistance. Does not include repair procedures or diagnostic troubleshooting.
Technical Depth
Technical Depth:
Detailed exploded views of every assembly, listing all individual part numbers, quantities, and descriptions. Essential for accurate part ordering and component identification for restoration and repair.
📊 Manual Specifications
File Format
File Format:
PDF
Print Quality
Print Quality:
High-resolution scans of original factory document, offering clear and legible exploded views and part numbers. Optimized for digital viewing and printing.
Binding Type
Binding Type:
N/A (Digital PDF)
Paper Type
Paper Type:
N/A (Digital PDF)
⚙️ Engine Specifications
Primary Engine
Engine Type:
Two-stroke, single-cylinder
Bore Stroke 125Cc:
Approx. 54mm x 54.5mm
Bore Stroke 240Cc:
Approx. 69mm x 64.4mm
Bore Stroke 250Cc:
Approx. 69mm x 67.4mm
Bore Stroke 390Cc:
Approx. 82mm x 73.5mm
Cooling System:
Air-cooled (some larger displacements may have had liquid cooling options, though the 'CR' designation typically implies air-cooled motocross focus for this era).
Ignition System:
Flywheel magneto ignition (e.g., Motoplat or similar).
Fuel Mixture:
Pre-mix (e.g., 20:1 or 25:1 ratio of gasoline to two-stroke oil, consult specific manual or service bulletin for exact ratio).
Performance
Horsepower 125Cc:
Estimated 25-30 HP (at crank)
Horsepower 250Cc:
Estimated 30-35 HP (at crank)
Horsepower 390Cc:
Estimated 38-45 HP (at crank)
Fuel System
Carburetor Size 125Cc:
Typically 32-34mm (e.g., Mikuni VM or Bing).
Carburetor Size 250Cc:
Typically 34-36mm (e.g., Mikuni VM or Bing).
Carburetor Size 390Cc:
Typically 36-38mm (e.g., Mikuni VM or Bing).
🔧 Transmission
Standard
Transmission Type:
6-speed constant mesh sequential manual transmission
Optional
Optional Features:
N/A (Standard for CR models)
Features
Clutch Type:
Wet, multi-plate, cable-actuated
Gear Ratios:
Specific gear ratios vary by model displacement; detailed in the manual's exploded views and part listings.
Transmission Oil Type:
Dedicated transmission oil, typically SAE 80W or 90W gear oil (consult manual for exact specification and capacity).
📐 Dimensions
Exterior
Overall Length:
Varies by model, detailed in specification tables not present in a parts manual.
Wheelbase:
Varies by model, typically around 1400-1450mm.
Weights
Dry Weight 125Cc:
Approx. 95-105 kg
Dry Weight 250Cc:
Approx. 105-115 kg
Dry Weight 390Cc:
Approx. 115-125 kg
Fuel Tank Capacity:
Typically 8-10 Liters.
🛡️ Safety Features
Ratings
Safety Ratings:
N/A for off-road motorcycles of this era, safety depended on rider skill and machine preparation.
Active Features
Active Safety Features:
Effective braking systems (drum front and rear typically), responsive suspension, and chassis geometry designed for predictable handling.
Passive Features
Passive Safety Features:
Robust frame construction, protective bodywork (fenders, number plates).
💡 Technology Features
Infotainment
Infotainment Features:
N/A (Basic motocross off-road motorcycle).
Driver Assistance
Driver Assistance Features:
N/A (Basic motocross off-road motorcycle).
Connectivity
Connectivity Features:
N/A (Basic motocross off-road motorcycle).
🔧 Maintenance
Service Intervals
Service Intervals:
This parts manual does not detail service intervals, but typical for this era includes: frequent spark plug cleaning/replacement, air filter cleaning/oiling, chain lubrication, clutch and brake adjustment, and periodic engine top-end rebuilds (piston, rings) based on operating hours.
Fluid Specifications
Engine Oil Type:
Two-stroke engine oil specifically designed for pre-mix application. Consult manual for recommended SAE grade and brand specifications (e.g., Castrol TTS, Motul 2T).
Transmission Oil Capacity:
Approx. 700-800cc (verify with specific model in manual).
Fork Oil Type:
Specific fork oil viscosity (e.g., SAE 5W, 10W, 15W), consult manual for exact specification and quantity per fork leg.
Known Issues
Known Issues:
Common issues for two-stroke bikes of this era include: wear on piston rings and cylinder bores, clutch wear, ignition component failure (coil, points if applicable), carburetor jetting sensitivity, and potential for frame cracks in heavily used machines. Parts availability for some components can be challenging, making this manual invaluable.
Parts Ordering Tip
Parts Ordering Tip:
Always use the exact part numbers listed in this manual to ensure compatibility. Cross-referencing with dealer databases or aftermarket suppliers is recommended for sourcing.
📚 Vehicle History
Brand Heritage
Brand Heritage:
Husqvarna, founded in Sweden in 1689, has a long and storied history in motorcycle manufacturing, particularly in off-road disciplines. They were pioneers in two-stroke engine technology and motocross racing success.
Model Evolution
Model Evolution:
The CR series evolved through the 1970s, with continuous improvements in engine performance, suspension technology (e.g., leading-axle forks, monoshock rear suspension), and chassis design. The 1980 models were part of the refinement of this successful platform.
Production
Production Location:
Husqvarna motorcycles were primarily manufactured in Sweden.
Production Period Cr Series:
Husqvarna CR models were produced from the early 1970s through the 1990s and beyond, with significant updates in each generation.
🏆 Awards & Recognition
Recognitions
Recognitions:
Husqvarna CR models consistently performed well in national and international motocross and enduro championships during their production years, cementing their reputation for performance and durability.
Ratings
Ratings:
Contemporary reviews often praised the powerful engines and robust chassis of the CR series. Specific ratings are not applicable in modern terms.
Certifications
Certifications:
N/A (Off-road motorcycles of this era were not subjected to road-legal certifications).
📄 Manual Utility
Usefulness
Usefulness For Restoration:
Extremely high. Essential for identifying correct, original parts for a period-correct restoration.
Usefulness For Maintenance:
High. Facilitates accurate part ordering for routine maintenance and repairs.
Usefulness For Diagnosis:
Indirect. While not a diagnostic manual, correctly identifying and replacing parts can resolve many issues.
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