Motorcycle Segment:
Supermoto (SM)
Target Audience:
Enthusiasts and mechanics seeking to maintain, repair, or restore their 2007-2008 Husqvarna SM450R.
Key Competitors:
Other 450cc Supermoto offerings from brands like KTM (e.g., 450 SMR), Yamaha (e.g., WR450F converted), and Aprilia (e.g., SXV450).
Vehicle Attributes:
High-performance, lightweight, agile, street-legal dirt bike optimized for asphalt performance with a focus on handling and braking.
Manual Value Proposition:
Provides essential technical knowledge and procedures to keep the SM450R operating at peak performance and to facilitate efficient repairs, saving time and money compared to dealer service.
Engine System:
Detailed diagnosis, repair, and overhaul procedures for the 450cc single-cylinder engine. Includes piston, cylinder, valve train, crankshaft, lubrication system, and cooling system.
Fuel System:
Carburetor (likely Keihin FCR) tuning, cleaning, and rebuilding. Fuel pump (if applicable), fuel lines, and fuel filter maintenance.
Ignition System:
Spark plug specifications, ignition coil testing, stator and CDI unit diagnostics.
Transmission System:
Gearbox disassembly, inspection, and assembly. Clutch operation and adjustment, shift drum and forks servicing.
Cooling System:
Radiator, coolant hoses, water pump, and thermostat servicing. Coolant type and capacity specifications.
Chassis And Suspension:
Front fork (upside-down) service, including oil level, type, and seal replacement. Rear shock absorber servicing and adjustments. Swingarm and linkage maintenance.
Braking System:
Front and rear brake caliper service, master cylinder overhaul, brake pad replacement, fluid flush and bleed procedures. Disc inspection.
Electrical System:
Wiring diagrams, lighting system, battery maintenance, starter motor, charging system (stator, regulator/rectifier).
Wheels And Tires:
Wheel bearing inspection and replacement, tire pressure recommendations, spoke tensioning.
Bodywork And Ergonomics:
Fairing removal and installation, seat servicing, handlebar replacement.
Routine Maintenance:
Oil and filter changes, air filter cleaning/replacement, spark plug replacement, chain lubrication and adjustment, brake pad checks, tire pressure checks.
Troubleshooting:
Step-by-step diagnostic procedures for common and uncommon issues across all major systems.
Component Rebuild:
Complete rebuild instructions for the engine, transmission, clutch, and suspension components.
Specifications And Tolerances:
Detailed torque specifications for all fasteners, valve clearance specifications, piston ring gap, and bearing clearances.
Electrical Diagnostics:
Troubleshooting electrical faults using wiring diagrams and multimeter testing.
Suspension Adjustment And Service:
Detailed guide on adjusting damping and preload, along with procedures for fork seal replacement and shock service.
Depth Of Information:
Comprehensive, covering everything from basic adjustments and routine maintenance to complete engine and transmission rebuilds, and advanced troubleshooting.
Engine Type:
Four-stroke, single-cylinder, DOHC, liquid-cooled
Bore X Stroke:
97.0 mm x 60.8 mm
Horsepower Estimate:
~50-55 hp (claimed, at crankshaft, varies with tuning)
Torque Estimate:
~45 Nm (claimed, at crankshaft, varies with tuning)
Carburetor Model:
Likely Keihin FCR 39mm (flat slide).
Fuel Type:
Unleaded gasoline, minimum 95 RON (Octane Rating).
Cooling Medium:
Ethylene glycol-based coolant mixture (50/50 with distilled water).
Oil Type:
JASO MA certified 4-stroke motorcycle oil (e.g., Motul 3000 10W-40 or similar).
Oil Capacity:
Approximately 1.2 - 1.5 Liters (refer to manual for exact capacity with filter change).
Safety Certification:
Street legal (DOT, E-mark for lighting/indicators), but primary focus on off-road performance characteristics.
Braking System Type:
Hydraulic disc brakes front and rear. Dual piston caliper front, single piston caliper rear (typical).
Brake Disc Diameter Front:
Typically 320mm (large diameter for Supermoto).
Brake Disc Diameter Rear:
Typically 240mm.
Frame Construction:
Chromoly steel or aluminum perimeter frame (typical for Husqvarna).
Infotainment System:
Basic rider information display (odometer, trip meter, basic indicators); no advanced infotainment features.
Driver Assistance Features:
None (Focus on rider control and mechanical performance).
Connectivity Features:
None.
Instrument Cluster:
Analog tachometer, digital speed display, fuel level warning, engine oil warning, neutral indicator, turn signal indicators.
Engine Oil Change Interval:
Every 3,000 km or 6 months, whichever comes first (typical for performance motorcycles; check manual for precise interval).
Air Filter Cleaning:
Every 1,000 km or more frequently in dusty conditions.
Spark Plug Replacement:
Every 6,000 km or as needed based on inspection.
Valve Clearance Check:
Every 6,000 km or annually.
Fork Oil Type:
High-quality suspension fluid, viscosity typically around 5W or 7.5W (refer to manual for exact type and level).
Common Wear Items:
Clutch plates, brake pads, chain and sprockets, fork seals, and wheel bearings are typical wear items on performance motorcycles.
Potential Issues Documentation:
Manual will detail troubleshooting for carburetor jetting issues, potential cooling system leaks, and electrical connector integrity checks.
