HUSQVARNA SMR 450 R Service Repair Manual 2007-2008

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🏷️ Basic Information Identification Make: Husqvarna Model: SMR 450 R Model Variant: Supermoto Year: 2007-2008 Codes Engine Code Range: Likely single-cylinder LC4 variants, specific codes would be detailed in the...

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Type: Motorcycle

Vendor:

Sku: 268031

Tags: 2007 2008 Husqvarna Motorcycle Motorcycles SMR 450 R SMR Models

Product variants

Description

🏷️ Basic Information

Identification

Make:

Husqvarna

Model:

SMR 450 R

Model Variant:

Supermoto

Year:

2007-2008

Codes

Engine Code Range:

Likely single-cylinder LC4 variants, specific codes would be detailed in the manual

👋 Introduction

Market Position

Category:

High-performance Supermoto motorcycle.

Target Audience:

Enthusiasts, track day riders, racers, and DIY mechanics seeking in-depth repair knowledge.

Competitive Analysis

Competitors:

KTM EXC Supermoto series, Yamaha WR series, Honda CRF Supermoto conversions, Suzuki DRZ Supermoto conversions.

Key Features

Vehicle Focus:

Agile handling, potent single-cylinder engine, track-oriented performance for street use.

Manual Value Proposition:

Provides the essential technical documentation to maintain and repair the SMR 450 R, saving on dealer service costs and empowering owners with knowledge.

📋 Manual Details

Coverage Areas

Engine Systems:

Engine overhaul, top-end rebuild, lubrication, cooling, fuel injection, ignition

Chassis Systems:

Frame, suspension (forks, rear shock), steering, wheels, tires

Drivetrain Systems:

Clutch, transmission, final drive (chain)

Braking Systems:

Front and rear brake caliper service, master cylinders, hydraulic lines, bleeding procedures

Electrical Systems:

Wiring diagrams, lighting, ignition system, battery, starter, charging system, ECU diagnostics

Bodywork And Trim:

Fairings, seat, fuel tank, fenders, handlebars, controls

Troubleshooting:

Diagnostic procedures for common and complex issues, fault codes

Page Count

Estimated Pages:

Hundreds (as stated in product description, typically 300-600 for this type of manual)

Manual Type

Type:

Service Repair Manual

Purpose:

Repair, maintenance, rebuild, refurbish, restoration

Language

Language:

English

Format

Format:

📖 Manual Coverage

Systems Covered

Engine Type:

Single-cylinder, four-stroke, liquid-cooled (LC4 architecture)

Fuel System:

Electronic Fuel Injection (EFI) - detailed component testing and calibration

Ignition System:

Digital ignition, component testing (coil, CDI, sensors)

Lubrication System:

Wet sump or semi-dry sump (depending on specific LC4 generation detail), oil pump, filter, oil cooler maintenance

Cooling System:

Liquid cooling system, radiator, water pump, thermostat, coolant flow diagnostics

Transmission Type:

6-speed constant mesh gearbox

Clutch Type:

Hydraulically actuated wet multi-plate clutch

Suspension Front:

Upside-down (USD) forks - service, seal replacement, damping adjustments, spring preload

Suspension Rear:

Monoshock rear suspension with linkage - shock absorber service, linkage lubrication, adjustment procedures

Brakes Front:

Hydraulic disc brake, multi-piston caliper (e.g., Brembo), rotor specifications

Brakes Rear:

Hydraulic disc brake, single-piston caliper, rotor specifications

Electrical Components:

ECU, sensors (TPS, MAP, IAT, O2), starter motor, alternator/stator, battery management

Procedures Included

Engine Maintenance:

Oil and filter changes, valve clearance adjustment, de-carbonization, spark plug replacement

Engine Rebuild:

Piston and ring replacement, cylinder honing, crankshaft inspection and bearing replacement, camshaft and timing chain service

Fuel System Service:

Injector cleaning and testing, fuel pressure regulator check, throttle body service

Transmission Service:

Gearbox oil change, clutch adjustment and replacement, gear selector mechanism troubleshooting

Suspension Service:

Fork seal and oil replacement, rear shock absorber service and rebuild, linkage bearing service

Brake System Service:

Brake pad replacement, caliper rebuilding, master cylinder service, hydraulic line replacement, brake fluid bleeding

Electrical Diagnostics:

Wiring diagram interpretation, fault finding for starting/charging issues, sensor diagnostics

Wheel And Tire Service:

Tire mounting and balancing, wheel bearing replacement, spoke tensioning (if applicable to SMR variants)

Diagnostic Procedures:

Step-by-step troubleshooting guides for various symptoms

Torque Specifications:

Detailed torque values for all critical fasteners

Technical Depth

Depth:

Comprehensive: Covers routine maintenance to full engine and chassis overhauls.

Detail Level:

Detailed step-by-step instructions with accompanying diagrams and illustrations.

Diagnostics:

Advanced diagnostic procedures for electrical and mechanical systems.

📊 Manual Specifications

File Format

Format:

Searchability:

Likely text-searchable PDF for efficient information retrieval.

Printability:

Printable pages for workshop use.

Print Quality

Quality:

High-resolution for clear diagrams and text.

Binding Type

Type:

Not applicable for PDF format, but implies digital access.

Paper Type

Type:

Not applicable for PDF format.

⚙️ Engine Specifications

Primary Engine

Type:

Single-cylinder, four-stroke, DOHC, liquid-cooled (LC4)

Displacement:

Approximately 449cc (specific bore x stroke would be detailed in manual)

Bore X Stroke:

Likely around 95mm x 63.4mm (typical for LC4 450 variants)

Compression Ratio:

Typically 11.0:1 to 12.0:1 for this performance level

Performance

Horsepower:

Estimated 50-55 HP (specific output varies by tuning and year)

Torque:

Estimated 45-50 Nm (specific output varies)

Fuel System

System:

Electronic Fuel Injection (EFI) - Keihin or Mikuni throttle body

Fuel Type:

Unleaded gasoline, minimum 95 RON

Ignition System

Type:

Digital CDI with variable ignition timing

Lubrication System

Type:

Semi-dry sump with external oil cooler

Oil Type:

High-performance synthetic motorcycle engine oil (e.g., Motul 7100 10W-50 or similar JASO MA certified)

Oil Capacity:

Approx. 1.5 - 1.7 liters (including filter, check manual for exact spec)

🔧 Transmission

Standard

Type:

6-speed constant mesh gearbox

Optional

Type:

N/A (This is a specific model variant)

Features

Clutch Actuation:

Hydraulic

Clutch Type:

Wet multi-plate

Transmission Fluid

Type:

Use engine oil meeting JASO MA/MA2 specifications (same as engine oil)

📐 Dimensions

Exterior

Frame Type:

Chromoly steel trellis frame

Front Wheel Size:

17-inch (typical for Supermoto)

Rear Wheel Size:

17-inch (typical for Supermoto)

Tire Size Front:

e.g., 120/70-17 (specifics in manual)

Tire Size Rear:

e.g., 160/60-17 (specifics in manual)

Weights

Dry Weight:

Approx. 130-135 kg (check manual for exact specification)

Fuel Tank Capacity:

Approx. 9.5 liters

🛡️ Safety Features

Ratings

Certification:

CE (if sold in Europe), DOT/EPA (if sold in North America for street use)

Active Features

Braking Performance:

High-performance hydraulic disc brakes front and rear, designed for aggressive stopping.

Passive Features

Chassis Stability:

Robust steel trellis frame provides excellent rigidity and rider feedback.

Ergonomics:

Supermoto riding position designed for control and maneuverability.

💡 Technology Features

Infotainment

System:

Basic digital instrument cluster displaying speed, RPM, odometer, trip meters, and basic warning lights.

Features:

No advanced infotainment or audio systems; focus is on performance and rider interface.

Driver Assistance

Assistance:

N/A (No electronic rider aids like ABS or traction control typically found on this model/year).

Connectivity

Connectivity:

N/A (No Bluetooth or smartphone integration).

Engine Management

Electronic Control Module (ECM) managing fuel injection and ignition timing.

🔧 Maintenance

Service Intervals

Oil And Filter Change:

Every 3,000-5,000 km or annually, whichever comes first (refer to manual for precise interval).

Valve Clearance Check:

Every 6,000-10,000 km or annually.

Air Filter Cleaning:

Frequent inspection and cleaning, especially in dusty conditions; replace as needed.

Spark Plug Replacement:

Every 10,000-15,000 km or as recommended.

Fluid Specifications

Engine Oil:

Fully synthetic SAE 10W-50, JASO MA/MA2 certified.

Coolant:

Ethylene glycol-based coolant, 50/50 mix with distilled water.

Brake Fluid:

DOT 4 hydraulic brake fluid.

Fork Oil:

Specific suspension fork oil, viscosity typically SAE 5W or 10W (manual will specify exact type and level).

Known Issues

Common Wear Items:

Clutch plates (due to performance riding), wheel bearings, fork seals, chain and sprockets.

Potential Engine Considerations:

Valve train wear if maintenance intervals are neglected, potential for cam chain tensioner issues on higher mileage units.

📚 Vehicle History

Brand Heritage

Manufacturer:

Husqvarna Motorcycles, one of the oldest motorcycle manufacturers in the world, known for off-road prowess.

Model Evolution

Development:

The SMR series evolved from Husqvarna's extensive experience in motocross and enduro, adapting these platforms for street-legal supermoto racing.

Platform:

Utilizes the well-regarded LC4 engine architecture, known for its strong torque and reliability in demanding applications.

Production

Manufacturing:

Primarily manufactured in Italy during this period.

🏆 Awards & Recognition

Recognitions

Segment Awards:

Husqvarna's SMR line has historically been well-regarded within the supermoto community for its performance and handling characteristics.

Ratings

Enthusiast Reviews:

Often praised for its potent engine, agile chassis, and aggressive styling.

Certifications

Quality Standards:

Manufactured to European quality standards for motorcycles.