Category:
Supermoto / Competition Motorcycles
Target Demographic:
Enthusiasts and competitive riders seeking performance-oriented street-legal dirt bikes.
Competitors:
KTM EXC/SMC series, Yamaha WR series, Beta RR series, Aprilia SXV series.
Performance Focus:
Built for agile handling, powerful acceleration, and track-day performance.
Engine Architecture:
Single-cylinder, liquid-cooled, DOHC (Design varies slightly between 449 and 511).
Suspension Type:
High-quality adjustable upside-down front forks and monoshock rear suspension.
Braking System:
Performance-oriented braking components, often Brembo or similar.
Engine Overhaul:
Complete engine disassembly, inspection, repair, and reassembly procedures for both SMR449 and SMR511 variants.
Fuel System:
Fuel injection system diagnosis and repair, fuel pump, injectors, throttle body, sensors, and fuel tank maintenance.
Ignition System:
Ignition coil, spark plug, ECU mapping, and related sensor troubleshooting.
Cooling System:
Radiator, fan, hoses, water pump, and coolant specifications and maintenance.
Transmission Clutch:
Clutch system inspection, adjustment, and replacement; transmission disassembly, gear inspection, and lubrication.
Suspension Front:
Front fork disassembly, service, seal replacement, oil levels, damping adjustments, and spring rates.
Suspension Rear:
Rear shock absorber service, linkage maintenance, bearing inspection, and rebound/compression adjustments.
Brakes Front:
Brake caliper service, pad replacement, rotor inspection, hydraulic system bleeding, and master cylinder overhaul.
Brakes Rear:
Rear brake caliper service, pad replacement, rotor inspection, and hydraulic system bleeding.
Electrical System:
Wiring diagrams, component testing, stator, regulator/rectifier, battery, starter motor, lighting, and ECU diagnosis.
Chassis Frame:
Frame inspection, steering head bearing service, and general chassis component maintenance.
Bodywork Panels:
Fairing, seat, fuel tank, and fender removal, installation, and repair.
Wheels Tires:
Wheel bearing service, rim inspection, tire mounting/dismounting, and spoke tensioning.
Preventative Maintenance:
Detailed schedules for oil changes, filter replacements, chain adjustment, and general inspections.
Troubleshooting Diagnostics:
Systematic diagnostic procedures for common and uncommon problems, including fault codes where applicable.
Component Replacement:
Step-by-step instructions for replacing all major and minor components of the motorcycle.
Torque Specifications:
Precise torque values for all fasteners and critical components to ensure proper assembly and safety.
Timing Adjustments:
Valve clearance adjustment procedures, timing chain inspection, and ignition timing checks (if applicable).
Electrical Troubleshooting:
Detailed guidance on diagnosing electrical faults using multimeters and electrical schematics.
Suspension Tuning:
Guidance on adjusting suspension settings for various riding conditions and rider preferences.
Depth:
Comprehensive, covering everything from basic maintenance to complete engine and transmission rebuilds.
Target Audience:
Professional motorcycle technicians and advanced DIY mechanics.
Special Tools:
Lists of required special tools for specific procedures.
Type:
Single-cylinder, 4-stroke, Liquid-cooled, DOHC
Smr449 Displacement:
Approximately 449cc (Specific bore/stroke to be detailed in manual)
Smr511 Displacement:
Approximately 510cc (Specific bore/stroke to be detailed in manual)
Bore X Stroke:
Varies between SMR449 and SMR511; detailed in manual.
Horsepower:
Estimated 50-60 HP range, depending on model and tuning; exact figures in manual.
Torque:
Estimated 40-50 Nm range; exact figures in manual.
Fuel Delivery:
Electronic Fuel Injection (EFI)
Fuel Type:
Unleaded Gasoline (Premium recommended)
Oil Type:
High-performance motorcycle-specific 4-stroke engine oil, typically JASO MA certified.
Oil Capacity:
Refer to manual; typically around 1.0-1.5 liters.
Oil Change Interval:
Refer to manual; typically every 3,000-5,000 km or annually. Frequent use may require more frequent changes.
Air Filter Cleaning:
Refer to manual; recommended every 1,000-2,000 km, especially in dusty conditions.
Spark Plug Replacement:
Refer to manual; typically every 5,000-10,000 km.
Chain Lubrication Adjustment:
Recommended every 500-1000 km and after washing or riding in wet conditions.
Engine Oil:
SAE 10W-50 or 15W-50, API SG/SH/SJ or higher, JASO MA certified motorcycle oil.
Coolant:
Ethylene glycol-based coolant with anti-corrosion additives (e.g., Motorex M3.0 or equivalent).
Brake Fluid:
DOT 4 or DOT 5.1 hydraulic brake fluid.
Fork Oil:
Refer to manual for viscosity (e.g., SAE 5W or 7.5W) and level.
Clutch Slippage:
Can occur with aggressive riding or if oil specifications are incorrect; clutch plates may need replacement.
Suspension Leaks:
Fork seals and rear shock seals can wear over time, leading to leaks. Regular maintenance is key.
Electrical Gremlins:
Wiring harness integrity and connections should be checked regularly, especially after off-road use.
Heritage:
Husqvarna is one of the oldest motorcycle manufacturers in the world, with a strong heritage in off-road and competition motorcycles.
Supermoto Lineage:
The SMR line builds upon Husqvarna's extensive experience in motocross and enduro racing, adapting it for street use and supermoto competition.
2011 Update:
The 2011 models represented a refinement of the platform, often incorporating updated engine management, suspension components, and styling.
Manufacturing Location:
Italy (Historically, under various ownerships).