🏷️ Basic Information

Make:

Husqvarna

Model:

SM 400R, SM 450R, SM 410R

Year:

2007

Engine Codes:

LC4 based, specific designations may vary by model variant (e.g., 400cc, 450cc, 410cc displacements)

Chassis Codes:

Specific chassis codes vary by model (e.g., SM400R, SM450R, SM410R)

👋 Introduction

Market Position:

The Husqvarna SM 400/450/410R series represents a potent entry into the Supermoto segment, known for their potent off-road derived engines adapted for street legality and performance. These bikes appeal to riders seeking an agile, powerful, and engaging riding experience with a distinct European flair.

Riding Style:

Designed for aggressive street riding, aggressive cornering, and spirited commuting, offering an authentic Supermoto experience.

Competitive Analysis:

Competes with other European and Japanese manufacturers in the Supermoto class, offering a blend of raw power, sharp handling, and robust build quality. Often favored by riders who appreciate the heritage and specialized engineering of Husqvarna.

Key Features:

Powerful LC4 engine platform, high-performance suspension, strong braking systems, lightweight chassis, distinctive Supermoto styling, and a focus on rider engagement.

Manual Organization:

Features a superb table of contents for easy navigation to specific repair or maintenance topics.

📋 Manual Details

Coverage Areas:

Full service, repair, maintenance, troubleshooting, and restoration for Husqvarna SM 400R, SM 450R, and SM 410R models from 2007.

Page Count:

Hundreds of pages (exact count not specified but implied to be extensive).

Manual Type:

Service Repair Manual

Language:

English

Format:

PDF

📖 Manual Coverage

Systems Covered:

Engine (internal components, top-end, bottom-end), Fuel System (carburetor/injection, fuel pump, lines), Ignition System, Cooling System, Lubrication System, Exhaust System, Transmission (clutch, gearbox, final drive), Chassis, Suspension (front forks, rear shock), Braking System (front and rear), Electrical System (wiring diagrams, lighting, battery, starter), Wheels, Tires, Controls, Bodywork, Frame, fasteners, and torque specifications.

Electrical System Details:

Comprehensive wiring diagrams, component testing, troubleshooting for lighting, ignition, charging system (stator, rectifier/regulator), starter motor, battery, and all switches/controls.

Suspension Systems:

Covers front telescopic forks (e.g., Marzocchi, WP) and rear monoshock suspension, including adjustment, seal replacement, oil changes, and full rebuild procedures.

Frame And Swingarm:

Inspection for cracks or damage, swingarm bearing service, and fastener torque specifications for frame components.

Procedures Included:

Routine maintenance (oil changes, filter replacements, chain adjustment, spark plug replacement), disassembly and reassembly of all major components, troubleshooting guides for common issues, diagnostic procedures, rebuild instructions for engine and transmission, suspension adjustments and rebuilds, brake system servicing, electrical system diagnostics and repair, wheel and tire maintenance, bodywork repair and alignment.

Engine Rebuild Procedures:

Step-by-step instructions for piston and ring replacement, cylinder head servicing, valve clearance adjustment, crankshaft and connecting rod inspection and replacement, oil pump servicing, and complete engine disassembly/reassembly.

Transmission Repair Procedures:

Detailed guidance on gearbox disassembly, gear inspection and replacement, shift drum and fork servicing, clutch assembly and disassembly, and lubrication system integration.

Wheel And Tire Maintenance:

Includes wheel bearing checks and replacement, spoke tensioning (if applicable), tire fitting and balancing, and recommended tire pressures.

Technical Depth:

Comprehensive. Covers everything from basic owner-level maintenance to in-depth workshop-level repairs, rebuilding, and restoration. Includes detailed diagrams, specifications, and torque values.

Diagnostic Procedures:

Includes methods for diagnosing ignition system faults, fuel delivery issues, electrical system malfunctions, and mechanical problems using specified tools and techniques.

Troubleshooting Flowcharts:

Likely includes diagnostic flowcharts to systematically identify and resolve issues based on symptoms.

📊 Manual Specifications

File Format:

PDF (Portable Document Format)

Searchable Text:

Likely searchable text within the PDF for quick information retrieval, enhancing usability.

Navigation:

PDF format allows for hyperlinking between sections (if created as such) for efficient navigation.

Print Quality:

High-resolution, suitable for printing individual pages or the entire manual.

Diagram Clarity:

Expectation of high-quality, clear diagrams and illustrations essential for mechanical procedures.

Binding Type:

N/A (Digital PDF format)

Paper Type:

N/A (Digital PDF format)

⚙️ Engine Specifications

Engine Type:

Four-stroke, single-cylinder, liquid-cooled (LC4 platform).

Displacement:

Approximately 398cc (SM 400R), 449cc (SM 450R), 407cc (SM 410R) - specific engine codes and exact displacements should be verified in the manual.

Bore X Stroke:

Specifics vary by displacement (e.g., 400cc, 450cc). Manual provides exact measurements for each model variant.

Horsepower:

Ranges from approximately 45-55 HP depending on specific model variant and tuning. Precise figures are model-dependent and detailed in the manual.

Torque:

Torque figures vary by displacement; detailed specifications and power/torque curves are available in the manual.

Fuel Delivery:

Carburetor (e.g., Keihin FCR) or Electronic Fuel Injection (EFI) depending on specific model variant. Manual covers both possibilities and their diagnostics/servicing.

Fuel Type:

Unleaded gasoline, minimum 91 octane (RON+MON)/2).

Carburetor Size And Type:

If carbureted, the manual will specify the exact carburetor model (e.g., Keihin FCR 39/41mm) and jetting information.

🔧 Transmission

Transmission Type:

Constant mesh, 5-speed or 6-speed gearbox (depending on specific model variant). Manual provides details for the applicable transmission.

Optional Features:

N/A (typically fixed transmission configurations for this era of Supermoto).

Clutch Type:

Wet multi-plate clutch, hydraulically operated.

Final Drive:

O-ring sealed chain drive.

Gear Ratios:

Specific gear ratios for each speed are detailed within the manual, crucial for performance tuning and troubleshooting.

Clutch Adjustment:

Details on lever free play adjustment and internal clutch mechanism adjustments are provided.

📐 Dimensions

Wheelbase:

Approximately 1470-1500 mm (57.9-59.1 inches), varies slightly by model. Specific dimensions provided in the manual.

Seat Height:

Typically high, around 900-930 mm (35.4-36.6 inches). Exact figures in manual.

Ground Clearance:

Designed for Supermoto use, providing ample ground clearance for cornering. Specific values in the manual.

Tire Sizes Front:

Typically 120/70-17. Manual confirms exact specifications.

Tire Sizes Rear:

Typically 150/60-17 or 160/60-17. Manual confirms exact specifications.

Dry Weight:

Around 125-140 kg (275-308 lbs) depending on model variant. Manual provides exact figures.

Fuel Tank Capacity:

Approximately 8-10 Liters (2.1-2.6 US gallons). Manual will confirm.

Gross Vehicle Weight Rating:

Manual will specify the maximum permissible weight for safe operation.

Front Fork Oil Capacity:

Specific volume per fork leg for correct suspension performance, found in the manual.

🛡️ Safety Features

Safety Ratings:

Not applicable for motorcycles in the same way as automobiles (no NCAP ratings). Focus is on rider protection through design and maintenance.

Active Features:

Powerful disc brakes (dual front, single rear), high-performance suspension for stability and control, responsive throttle and braking inputs.

Brake System Details:

Specifies front brake caliper type (e.g., Brembo radial), disc diameter, piston count, and rear brake caliper and disc specifications. Includes pad replacement and bleeding procedures.

Passive Features:

Robust frame construction, ergonomic rider controls, protective bodywork (minimal on Supermotos), high-visibility lighting.

💡 Technology Features

Infotainment System:

N/A (Motorcycle from this era typically featured analog instrumentation).

Driver Assistance Features:

N/A (Motorcycle focused on direct rider control).

Connectivity Features:

N/A.

🔧 Maintenance

Oil Change Interval:

Typically every 3,000-5,000 km (1,800-3,000 miles) or annually, whichever comes first. Specific interval detailed in the manual.

Valve Adjustment Interval:

Recommended every 6,000-10,000 km (3,700-6,000 miles). Exact interval and procedure in the manual.

Chain Maintenance Interval:

Regular cleaning and lubrication every 500-1000 km (300-600 miles) and tension check. Manual provides specifications.

Air Filter Cleaning Interval:

Recommended cleaning frequency based on riding conditions, typically more frequent in dusty environments. Detailed in the manual.

Engine Oil Type:

Typically SAE 10W-50 or 15W-50, JASO MA certified, synthetic or semi-synthetic motorcycle oil. Manual specifies exact grade and API classification.

Coolant Type:

Ethylene glycol-based antifreeze mixed with distilled water, typically a 50/50 ratio. Manual specifies type and capacity.

Brake Fluid Type:

DOT 4 or DOT 5.1 brake fluid. Manual confirms specific requirement.

Fork Oil Type:

Specific viscosity (e.g., SAE 5W, 7.5W, 10W) and quantity for front forks detailed in the manual.

Rear Shock Oil Type:

If applicable and serviceable, oil type and quantity for the rear shock will be in the manual.

Common Issues:

Potential for stator or regulator/rectifier failures, clutch wear, carburetor tuning sensitivity, and normal wear and tear on high-performance components. Manual provides troubleshooting for these.

Electrical Component Diagnostics:

Detailed troubleshooting procedures for intermittent electrical faults, common in high-vibration environments. Manual provides specific test values.

Carburetor Cleaning And Rebuild:

Procedures for cleaning, rebuilding, and re-jetting carburetors to maintain optimal performance and fuel efficiency.

📚 Vehicle History

Brand Heritage:

Husqvarna Motorcycles boasts a long and storied history dating back to 1903, with a strong pedigree in off-road racing, including Motocross and Enduro. This heritage informs the development of their Supermoto models.

Model Evolution:

The SM series evolved from Husqvarna's successful off-road platforms, adapting them with road-legal Supermoto wheels, tires, suspension, and braking components. The 2007 models represent a refinement of their Supermoto offerings based on extensive development.

Production Location:

Husqvarna motorcycles were primarily produced in Sweden during this period, with some manufacturing later shifting to Italy under different ownership structures.