Vehicle Segment:
High-performance Supermoto motorcycle, blending street legality with off-road capabilities.
Target Audience:
Enthusiasts and owners seeking to maintain, repair, and optimize their Husqvarna SMR 450 R.
Key Competitors:
KTM SMC series, Ducati Hypermotard, Aprilia Dorsoduro, Yamaha WR series converted to supermoto.
Manual Value Proposition:
Provides professional-level repair and maintenance information, empowering owners to save on service costs and perform work themselves.
Content Reliability:
Designed to be used by professional technicians, ensuring accuracy and completeness.
Systems Covered:
Engine, Fuel System, Ignition System, Electrical System, Chassis, Suspension, Brakes, Drivetrain, Wheels & Tires, Bodywork, Maintenance, Troubleshooting, Specifications
Estimated Page Count:
High (Detailed procedures suggest a comprehensive manual, likely several hundred pages when printed)
Manual Type:
Digital Workshop Repair Manual
Digital Format:
PDF Download
Engine Mechanical:
Detailed disassembly, inspection, assembly, and reconditioning of all engine components including cylinder head, valves, pistons, crankshaft, connecting rods, and lubrication system.
Fuel System:
Carburetor (if applicable for the specific market/model variant) or Fuel Injection system components, fuel pump, fuel lines, and pressure testing.
Ignition System:
Ignition coil, spark plug, CDI unit, wiring diagrams related to ignition.
Electrical System:
Wiring diagrams, battery, starter motor, alternator/generator, lighting, switches, fuses, and troubleshooting electrical faults.
Chassis And Frame:
Frame inspection, alignment checks, and related components.
Suspension Front:
Upside-down (USD) front fork disassembly, servicing, seal replacement, and tuning adjustments. Includes damping and spring preload adjustments.
Suspension Rear:
Monoshock rear suspension system, including shock absorber servicing, linkage lubrication, and adjustment procedures.
Braking System Front:
Brake caliper disassembly, pad replacement, fluid bleeding, master cylinder servicing, and rotor inspection.
Braking System Rear:
Rear brake caliper, master cylinder, and disc servicing.
Drivetrain:
Clutch operation, cable adjustment, and potentially clutch pack replacement. Gearbox inspection and maintenance.
Wheels And Tires:
Wheel bearing inspection and replacement, tire fitting and removal, spoke tensioning (if applicable to wire-spoke wheels), and wheel balancing.
Bodywork:
Fairing removal and installation, seat, fuel tank, and related plastic component servicing.
Routine Maintenance:
Oil changes, filter replacement (oil, air), chain cleaning and lubrication, spark plug checks, brake system inspections, tire pressure checks.
Troubleshooting:
Systematic diagnostic procedures for common performance issues, starting problems, electrical faults, and unusual noises.
Rebuild Procedures:
Complete engine rebuild, gearbox overhaul, front fork rebuild, and brake system component overhauls.
Component Replacement:
Detailed steps for replacing parts such as pistons, rings, valves, clutch plates, bearings, seals, brake pads, and cables.
Adjustments:
Valve clearance adjustments, carburetor synchronization (if applicable), clutch and throttle cable free play adjustments, suspension settings.
Depth Of Coverage:
Comprehensive, covering from basic owner maintenance to in-depth mechanical repairs and diagnostics.
Diagnostic Capabilities:
Provides troubleshooting guides based on symptoms, allowing users to diagnose and repair specific issues effectively.
Special Tool Requirements:
Identifies specific tools and equipment needed for certain procedures, ensuring accuracy and efficiency.
Engine Type:
Four-stroke, Single-cylinder, Liquid-cooled
Displacement:
Approx. 449.6 cc (This is a standard displacement for the SMR 450 designation, specific to model variations)
Bore X Stroke:
Typically around 95 mm x 63.4 mm (Subject to specific model variant confirmation within the manual)
Compression Ratio:
Typically around 12.0:1 (Subject to specific model variant confirmation within the manual)
Horsepower:
Estimated 50-55 HP (at crankshaft, subject to specific tuning and market regulations)
Torque:
Estimated 40-45 Nm (at crankshaft, subject to specific tuning and market regulations)
Fuel Delivery:
Likely Keihin FCR carburetor or Mikuni carburetor for the European market, or potentially Keihin fuel injection for specific variants.
Fuel Type:
Unleaded gasoline, minimum 95 RON (Research Octane Number)
Oil Type:
Fully synthetic motorcycle engine oil, SAE 10W-50 or 15W-50 recommended (Specific API classification and JASO standard should be confirmed in the manual).
Engine Oil Change:
Every 3,000-5,000 km or annually, whichever comes first (Consult manual for precise interval and conditions).
Oil Filter Replacement:
At every oil change.
Air Filter Cleaning:
Every 500-1,000 km or more frequently in dusty conditions.
Spark Plug Replacement:
Every 6,000-10,000 km (Specific plug type and gap to be confirmed).
Valve Clearance Check:
Every 6,000-10,000 km (Critical for performance and longevity).
Chain Lubrication:
Every 500 km and after washing or riding in rain.
Coolant Type:
Ethylene glycol based coolant, mixed 50/50 with distilled water.
Brake Fluid:
DOT 4 or DOT 5.1 brake fluid (Refer to manual for specific recommendation).
Fork Oil Type:
Specific suspension fluid viscosity, e.g., SAE 5W or 10W (Manual will specify precise type and level).
Common Wear Items:
Clutch plates, brake pads, fork seals, chain and sprockets due to aggressive riding style. Radiator hoses can age.
Potential Maintenance Focus:
Regular carburetor cleaning/adjustment, proper chain tension, and suspension upkeep are crucial for optimal performance and longevity.
