Historical Context:
Husqvarna has a long and storied history in off-road and dual-sport motorcycles. The 250cc class has historically been a popular segment for versatility, balancing power and manageability, often targeting riders for motocross, enduro, or trail riding. The 'PS' designation may point to specific performance enhancements or a particular era of Husqvarna's development.
Competitors:
In the 250cc class during various production eras, Husqvarna would have competed against models from manufacturers like Yamaha (DT250, YZ250), Suzuki (RM250), Kawasaki (KX250), Honda (CR250, XR250), and KTM. Each offered different characteristics in terms of power delivery, suspension, and intended use.
Manual Value Proposition:
This workshop manual provides the critical technical information necessary for owners and technicians to maintain and repair the Husqvarna 250 PS model. It is an essential tool for preserving the performance, reliability, and longevity of the motorcycle, enabling cost-effective DIY maintenance or informed professional servicing.
Model Years Covered:
Specific model years are not explicitly stated in the product description. Typically, workshop manuals cover a range of years for a specific model or generation. Assuming a common production span for a 250cc Husqvarna motorcycle, this could potentially cover years from the late 1970s through the 1990s or even earlier, depending on the specific 'PS' designation. Further clarification on the exact model year is recommended.
Engine Variants Covered:
Primarily the 250cc engine variant associated with the 'PS' designation. This manual would focus on the specific technical configurations of that engine.
Trim Levels Covered:
As this is a workshop service manual, it typically covers the core mechanical and electrical components common across all trim levels of the specific model. Specific cosmetic or accessory differences between trims are usually outside the scope of a service manual.
Estimated Page Count:
Typical comprehensive workshop service manuals for motorcycles of this era often range from 300 to 600 pages, depending on the detail and breadth of coverage. A precise page count is not provided in the product information.
Type:
Workshop Service Repair Manual
Purpose:
To provide detailed instructions and specifications for the diagnosis, maintenance, repair, and overhaul of the Husqvarna 250 PS motorcycle.
Language:
Not specified in product description. Typically, original manufacturer manuals are in the primary language of the manufacturing country (e.g., Swedish or English for Husqvarna), with translations often available. Assuming original language or common service language like English.
Format:
Not specified in product description. Commonly available in printed book format or digital (PDF).
Engine:
Complete engine disassembly, assembly, inspection, and repair procedures. Includes cylinder, piston, crankshaft, connecting rod, valve train, cooling system (if applicable), lubrication system, and timing.
Fuel System:
Carburetor(s) tuning, rebuilding, and component identification. Fuel tank, fuel lines, and fuel pump (if applicable) inspection and maintenance.
Ignition System:
Ignition coil, stator, rotor, spark plugs, and CDI unit testing and troubleshooting. Timing specifications and adjustments.
Transmission:
Gearbox disassembly, assembly, inspection, and repair. Clutch operation, adjustment, and replacement. Shifting mechanism.
Drivetrain:
Chain and sprockets maintenance, adjustment, and replacement. Rear wheel hub and bearing service.
Suspension:
Front forks (telescopic or leading axle) service, including oil changes, seal replacement, and spring inspection. Rear shock absorber(s) and linkage system maintenance and adjustment.
Brakes:
Brake system diagnosis, maintenance, and repair. Drum brake and disc brake component servicing (pads, calipers, master cylinders, lines, fluid replacement). Bleeding procedures.
Electrical System:
Wiring diagrams, battery maintenance, lighting system checks, horn, starter motor (if electric start), and charging system (alternator/stator) testing. Fuse and relay identification.
Chassis And Bodywork:
Frame inspection, wheel service (bearings, spokes), steering head bearing service, and general body panel removal/installation.
Maintenance:
Routine service tasks such as oil changes, filter replacements, chain lubrication and adjustment, spark plug replacement, air filter cleaning/replacement, brake adjustments, and tire pressure checks.
Troubleshooting:
Diagnostic charts and symptom-based problem-solving for common issues related to starting, engine performance, electrical faults, and braking.
Repair:
Step-by-step instructions for component removal, repair, overhaul, and reinstallation for all major systems.
Specifications And Measurements:
Detailed technical specifications, torque values, clearances, fluid capacities, and diagnostic parameters for all components.
Special Tools:
Identification and usage of specialized tools required for specific repair and maintenance procedures.
Depth:
Comprehensive. Covers from basic routine maintenance to complete engine and transmission rebuilds. Includes detailed diagnostic procedures for complex issues.
Digital Format Quality:
If digital (PDF), expected quality would be scanned or digitally created documents with clear text, images, and diagrams. Searchable text is a valuable feature. Resolution of diagrams and photographs is critical for clarity.
Print Format Quality:
If printed, expect durable paper stock suitable for workshop environments. High-resolution printing for diagrams and photographs is essential for accurate interpretation of repair procedures.
Binding:
For printed versions, common bindings include spiral-bound (lays flat for easy use in a workshop) or saddle-stitched/perfect bound. Durability is key.
Paper Stock:
Workshop manuals typically use heavier paper stock or coated paper to withstand grease, oil, and frequent handling in a garage or workshop environment.
Engine Type:
Likely a 2-stroke or 4-stroke single-cylinder engine, common for Husqvarna's 250cc models of various generations. Further specification requires exact model year and 'PS' variant detail.
Bore X Stroke:
Specific values are not provided. Typical for a 250cc single-cylinder engine might be around 66-70mm bore and 65-72mm stroke, but this varies significantly by generation and design.
Displacement:
250cc (approximately, specific figure required for exact model).
Compression Ratio:
Not specified. Typically in the range of 6.5:1 to 8.5:1 for older 2-strokes, or 10:1 to 12:1 for 4-strokes depending on performance tuning.
Horsepower:
Not specified. Early 250cc two-strokes could produce 25-35 HP, while later or 4-stroke versions might vary. 'PS' may indicate a specific power output.
Torque:
Not specified. Dependent on horsepower and engine characteristics.
Carburetor Type:
Likely a single carburetor, specific make/model (e.g., Mikuni, Bing, Dell'Orto) and size (e.g., 34mm, 36mm) would be detailed in the manual.
Fuel Type:
Unleaded gasoline, typically with a specified octane rating (e.g., 90-95 RON). For 2-stroke models, mixture with 2-stroke oil is required.
Oil Type:
For 4-stroke: Motorcycle-specific engine oil, SAE viscosity grade (e.g., 10W-40, 20W-50) and API service classification (e.g., SG, SH) specified by Husqvarna. For 2-stroke: Specific 2-stroke engine oil for pre-mix or oil injection systems.
Cooling Method:
Likely air-cooled for older models, or liquid-cooled for some performance-oriented variants. Manual would detail radiator, hoses, coolant type, and fan (if applicable).
Type:
Likely a constant-mesh manual gearbox.
Number Of Gears:
Typically 5 or 6 speeds for this displacement class.
Clutch Type:
Likely a multi-plate wet clutch.
Gear Ratios:
Specific gear ratios for each speed and final drive ratio would be detailed in the manual.
Transmission Oil Type:
Manual would specify the appropriate transmission oil, often a dedicated motorcycle gear oil or a specific SAE viscosity grade engine oil if shared with the engine.
Crash Test Data:
Motorcycles are not typically subjected to standardized crash testing in the same way cars are. Safety is addressed through design and component reliability.
Braking System Type:
Disc brakes (front and often rear on later models) or drum brakes (on earlier models). Manual would detail specifications and maintenance.
Suspension System Design:
Telescopic front forks and a swingarm rear suspension with monoshock or twin shocks. Manual covers adjustments and maintenance for stability and control.
Lighting System:
Headlight, taillight, brake light, and turn signals (depending on road legality and model type). Manual provides maintenance for electrical components.
Oil Change Interval:
Typical for a motorcycle of this type would be every 1,000-3,000 km (600-2,000 miles) or annually, whichever comes first. The manual will provide precise intervals based on usage and engine type.
Air Filter Cleaning:
Frequent cleaning recommended, often every 500-1,000 km, especially in dusty conditions. Manual will specify procedure.
Chain Maintenance:
Lubrication and adjustment recommended every 500 km or more frequently depending on riding conditions. Manual will provide tension specifications and lubricant types.
Spark Plug Replacement:
Intervals vary, typically 5,000-10,000 km for modern plugs, but older bikes may require more frequent checks or replacement. Manual will specify type and gap.
Valve Clearance Check:
For 4-stroke engines, typically every 5,000-10,000 km. For 2-stroke engines, this is not applicable.
Engine Oil Capacity:
Not specified. Typically 1.0 to 1.5 liters for a 250cc motorcycle engine. Manual will provide exact fill level.
Coolant Type:
If liquid-cooled, manual will specify ethylene glycol-based coolant and mixture ratio with distilled water.
Brake Fluid Type:
Typically DOT 3 or DOT 4 hydraulic brake fluid for systems with disc brakes.
Common Wear Items:
Clutch plates, brake pads, chain and sprockets, fork seals, wheel bearings, and spark plugs are common wear items that may require regular inspection and replacement.
Potential Engine Problems:
Depending on the specific model and maintenance history, potential issues could include carbon buildup in 2-stroke engines, wear in the transmission, or carburetor jetting issues. The manual is crucial for identifying and rectifying these.
Heritage:
Husqvarna Motorcycles AB is a Swedish manufacturer of motorcycles, founded in 1689 as a military weapons factory. The motorcycle division began in 1903, making it one of the oldest motorcycle manufacturers in the world. Renowned for its off-road racing heritage, particularly in motocross and enduro.
250Cc Lineage:
Husqvarna has produced 250cc models across various categories (motocross, enduro, dual-sport) for decades. The 'PS' designation could be tied to a specific engine technology or performance upgrade, possibly related to power steering (unlikely for a motorcycle) or a specific engine iteration (e.g., 'Performance Series' or a model-specific designation). Researching the specific era and 'PS' designation is key to understanding its place in the lineage.
Manufacturing Location:
Historically Sweden, though production locations have evolved over time with changes in ownership (e.g., Cagiva Group, BMW Group, Pierer Mobility AG). Manual would pertain to a specific manufacturing period and location.
