🏷️ Basic Information Identification Make: Husqvarna Model: 250 CR Year: 1979 Codes Chassis Code: Not specified, but typically denoted by model year and engine configuration for vintage motorcycles. Engine Code: Not specified, but typically based on displacement and specific engine series (e.g., a designation for the 250cc two-stroke engine). 👋 Introduction Market Position Historical Context: The 1979 Husqvarna 250 CR was a highly regarded off-road competition motorcycle, particularly in motocross and enduro. Husqvarna was a dominant force in off-road racing during the 1970s, known for their robust engines and innovative designs. Competitive Analysis Competitors: Competed against other European brands like KTM, Maico, and Suzuki, as well as emerging Japanese manufacturers in the motocross arena. Key Features Design Philosophy: Emphasized lightweight construction, powerful two-stroke engines, and durable suspension systems optimized for demanding off-road conditions. Manual Value Proposition: Crucial for owners of this vintage machine to source correct and genuine replacement parts, ensuring originality and proper function of their classic Husqvarna. 📋 Manual Details Coverage Areas Coverage Scope: Spare parts identification and location for the 1979 Husqvarna 250 CR. Page Count Estimated Page Count: Varies by specific catalog, but typically ranges from 100-300 pages for vintage motorcycle parts catalogs. Manual Type Type: Parts Catalogue Language Language: English (assumed, standard for this era and brand) Format Format: PDF 📖 Manual Coverage Systems Covered Engine Components: Piston, rings, cylinder, crankshaft, connecting rod, bearings, seals, gaskets, carburetor (internal components), ignition system (points, condenser, coil), exhaust system. Transmission Drivetrain: Gearbox internals (gears, shafts, shift drum), clutch assembly (plates, springs, basket), final drive sprocket, chain. Chassis Frame: Frame sections, subframe, swingarm, linkage (if applicable), footpegs, handlebars, controls. Suspension: Front forks (internals, seals, bushings), rear shock absorber (if applicable, including springs and damping rods). Brakes: Brake levers, master cylinders, brake lines, caliper components (pistons, seals), brake pads, brake drums (for rear if applicable). Wheels Tires: Rims, spokes, hubs, bearings, tires, tubes, valve stems. Electrical Lighting: Wiring harness, lighting (headlight, taillight, turn signals if equipped), switches, battery (if applicable for lighting systems). Bodywork Plastics: Fuel tank, fenders, side panels, seat, chain guard. Procedures Included Parts Identification: Detailed diagrams with exploded views of all major components and sub-assemblies. Part Numbering: Each illustrated part is assigned a unique manufacturer part number for ordering. Cross Referencing: May include some cross-referencing to common interchangeable parts or superseded part numbers. Technical Depth Depth: High (for parts identification). Provides precise part numbers and visual references for assembly. 📊 Manual Specifications File Format Digital Format: PDF (Portable Document Format) Print Quality Quality: High-resolution scans of original factory documentation, suitable for printing. Binding Type Binding: N/A (Digital download) Paper Type Paper: N/A (Digital download) ⚙️ Engine Specifications Primary Engine Type: Two-stroke, single-cylinder Displacement: Approximately 243cc (exact figure may vary slightly by specific engine variant, but this is the typical 250cc class designation) Bore X Stroke: Typically around 66.0 mm x 71.0 mm (specifics to be confirmed by the manual's diagrams) Cooling: Air-cooled Performance Horsepower: Estimated 25-30 HP (at peak RPM, varies by tuning and specific model year adjustments) Torque: Not explicitly stated in product info, but characteristic of a peaky two-stroke powerband. Fuel System Carburetor: Likely a large-bore Mikuni or Bing carburetor (e.g., 36mm or 38mm VM series). Manual will specify exact model and jetting. Fuel Type: Pre-mix gasoline (typically 95-100 octane unleaded with appropriate two-stroke oil) Ignition System: Points ignition system with a CDI (Capacitor Discharge Ignition) unit often integrated or for spark advance. Lubrication System: Total loss oiling system (oil mixed with fuel). Manual will specify oil-to-fuel ratio. 🔧 Transmission Standard Type: 6-speed constant mesh, sequential Optional Options: No optional transmissions typically offered for this competition model. Features Clutch: Wet multi-plate clutch, operated by cable. Gear Ratios: Specific gear ratios will be detailed in the manual's technical sections or transmission diagrams. Final Drive: Chain drive, with specific sprocket sizes detailed in the parts catalog. 📐 Dimensions Exterior Wheelbase: Approximately 56-58 inches (1422-1473 mm), typical for the era. Weights Dry Weight: Approximately 220-240 lbs (100-109 kg) without fluids, very competitive for its class. 🛡️ Safety Features Ratings Crash Test Results: N/A - Motorcycles are not subject to the same crash test ratings as passenger cars. Safety is rider-dependent. Active Features Braking System: Front: Drum brake. Rear: Drum brake (for 1979 model). Later models may have introduced disc brakes. Passive Features Frame Construction: Chromoly steel duplex cradle frame, designed for strength and rigidity. 💡 Technology Features Infotainment Features: N/A - This is a vintage competition motorcycle. No infotainment systems were present. Driver Assistance Features: N/A - No electronic rider aids or driver assistance features. Connectivity Features: N/A - No connectivity features. 🔧 Maintenance Service Intervals Spark Plug: Check and clean/gap every 5-10 hours of riding. Replacement interval varies significantly based on plug type and usage. Air Filter: Clean and re-oil after every few rides or after dusty...