Category:
Performance Supermoto Motorcycle
Target Audience:
Enthusiasts and professional mechanics specializing in Husqvarna motorcycles, particularly supermoto and off-road variants.
Competitors 2011:
KTM (e.g., 690 SMC), Ducati (Hypermotard), Aprilia (Dorsoduro), Yamaha (YZ450F/WR450F conversions).
Vehicle Focus:
Agile handling, powerful single-cylinder engine, capable on both street and light off-road use, premium components.
Manual Value Proposition:
Provides essential technical knowledge for maintaining peak performance and reliability of the SMR449.
Engine Mechanical:
Engine assembly, disassembly, inspection, overhaul, piston, rings, cylinder head, valves, camshafts, crankshaft, lubrication system, cooling system.
Fuel System:
Fuel injection system (EFI), throttle body, injectors, fuel pump, fuel pressure regulator, fuel tank, lines.
Ignition System:
ECU, ignition coils, spark plugs, wiring diagrams.
Transmission Drivetrain:
Gearbox, clutch system, chain drive, sprockets, lubrication.
Suspension:
Front forks (WP Suspension), rear shock absorber, linkages, bearings, spring rates, damping adjustments.
Brakes:
Front and rear brake systems, calipers, master cylinders, brake lines, brake discs, pads, bleeding procedures.
Electrical System:
Wiring harnesses, battery, starter motor, lighting (headlight, taillight, signals), switches, fuses, relays, ECU diagnostics.
Chassis Frame:
Frame inspection, steering head bearings, swingarm, wheels, spokes.
Bodywork Plastics:
Fairings, seat, fuel tank cover, fenders, mounting hardware.
Diagnostics:
Troubleshooting charts, fault code interpretation (if applicable via diagnostic tools), symptom-based diagnostics.
Routine Maintenance:
Oil changes, filter replacements, chain adjustments, spark plug replacement, air filter cleaning/replacement.
Component Overhaul:
Detailed instructions for rebuilding engine components, suspension forks, and brake systems.
Troubleshooting:
Systematic diagnosis of common problems and their solutions.
Wiring Diagrams:
Complete electrical schematics for easy troubleshooting and repair.
Torque Specifications:
Precise torque values for all critical fasteners and components.
Special Tools:
Identification and usage instructions for specialized tools required for certain procedures.
Depth:
Professional-level detail suitable for certified mechanics and experienced DIY enthusiasts.
Diagnostic Capabilities:
Covers diagnostics from basic visual checks to detailed system analysis.
Rebuild Procedures:
Includes complete engine and major component rebuild procedures.
Engine Type:
Four-stroke, single-cylinder
Bore X Stroke:
97.0 mm x 60.8 mm
Cooling System:
Liquid-cooled
Valve Train:
DOHC, 4 valves
Compression Ratio:
12.0:1
Horsepower Approx:
Approximately 50-55 hp (estimate based on similar models)
Torque Approx:
Approximately 45-50 Nm (estimate based on similar models)
Fuel Delivery:
Electronic Fuel Injection (EFI), Keihin throttle body
Fuel Type:
Unleaded gasoline, minimum 95 RON
Oil Type Engine:
SAE 10W-50, JASO MA approved motorcycle oil (e.g., Motul 5100 10W-50)
Oil Capacity W Filter:
Approx. 1.6 liters (check manual for exact specification)
Braking System Type:
Hydraulic disc brakes, front and rear
Front Brake Spec:
320mm disc, radial-mount 4-piston caliper (e.g., Brembo)
Rear Brake Spec:
240mm disc, 1-piston caliper
Lighting:
Halogen headlight, LED taillight
Tire Sizes Standard:
Front: 120/70-17, Rear: 150/60-17
Instrumentation:
Digital instrument cluster providing speed, RPM, odometer, trip meter, clock, and basic warning lights.
ABS:
Not typically equipped with ABS in this configuration; ABS was optional or introduced on later models/different variants.
ECU Interface:
ECU is programmable for tuning purposes, but requires specialized diagnostic tools and software for advanced access.
Oil Change Interval:
Every 5,000 km or 6 months (typical, refer to manual for exact)
Air Filter Cleaning:
Every 2,500 km or 3 months (typical, refer to manual for exact)
Valve Clearance Check:
Every 10,000 km or 12 months (typical, refer to manual for exact)
Chain Inspection Lubrication:
Every 1,000 km or as needed
Coolant Type:
Ethylene glycol-based antifreeze mixture (e.g., Motul Motocool Expert)
Common Wear Items:
Clutch plates, chain and sprockets, wheel bearings, steering head bearings, spark plug, brake pads.
Potential Engine Quirks:
Some models may experience oil consumption if not properly maintained; requires diligent attention to oil levels. Check for oil leaks around the cylinder head and base gasket.
Electrical Concerns:
Wiring harness chafing, particularly around the headstock and under the seat, can lead to intermittent electrical faults. Ensure all grounds are clean.
Origin:
Swedish motorcycle manufacturer with a long history in off-road racing.
Smn Smr Lineage:
The SMR line evolved from Husqvarna's successful motocross and enduro platforms, adapted for street legality and supermoto racing dominance.
Technical Basis:
Shares engine and chassis architecture with the SM450R and TE450 models of the era.
Manufacturer Ownership 2011:
BMW Motorrad acquired Husqvarna in 2007, with this model developed under BMW's ownership.
