Segment:
        
        
            Sport ATV segment, competitive with Yamaha YFZ450, Suzuki LT-R450, Honda TRX450R.
        
     
    
    
        
            Key Competitors 2009:
        
        
            Yamaha YFZ450, Suzuki LT-R450 Quadracer, Honda TRX450R, Kawasaki KFX450R.
        
     
    
    
        
            Performance Focus:
        
        
            Designed for recreational trail riding and aggressive sport riding, emphasizing performance and handling.
        
     
    
        
            Efi Benefit:
        
        
            Electronic Fuel Injection (EFI) offers improved throttle response, better altitude compensation, and easier starting in various conditions.
        
     
 
    
    
    
        
            Primary Coverage:
        
        
            Owner's operation, maintenance, and basic troubleshooting of the Can-Am DS 450 EFI ATV.
        
     
    
    
        
            Estimated Page Count:
        
        
            Approximately 150-200 pages (typical for an owner's manual of this era and complexity)
        
     
    
    
        
            Type:
        
        
            Owner's Manual / Operator's Manual
        
     
    
    
    
    
 
    
    
    
        
            Powertrain:
        
        
            Engine operation, lubrication, cooling system, fuel system (EFI), exhaust system.
        
     
    
        
            Drivetrain:
        
        
            Transmission operation, chain drive, differential (if applicable), clutch operation.
        
     
    
        
            Chassis And Suspension:
        
        
            Frame construction, front and rear suspension systems, steering system, wheels, and tires.
        
     
    
        
            Brakes:
        
        
            Front and rear brake system operation, hydraulic lines, brake fluid specifications.
        
     
    
        
            Electrical System:
        
        
            Battery, starter, lighting system, ignition system, fuse/relay identification, instrument panel.
        
     
    
        
            Controls And Indicators:
        
        
            Handlebar controls, foot controls, dashboard indicators and warning lights.
        
     
    
    
        
            Operation:
        
        
            Pre-ride inspection, starting procedures, riding techniques, proper shutdown, parking.
        
     
    
        
            Maintenance:
        
        
            Regular checks (oil level, tire pressure, chain tension), cleaning, lubrication, fluid changes, filter replacements.
        
     
    
        
            Troubleshooting:
        
        
            Basic diagnostic steps for common issues like starting problems, engine performance, electrical faults.
        
     
    
        
            Safety Information:
        
        
            Operator safety guidelines, protective gear recommendations, riding environment warnings.
        
     
    
    
        
            Depth:
        
        
            Designed for the end-user; covers routine maintenance, basic adjustments, and identification of common issues. Does not typically include detailed engine rebuild procedures or complex electrical diagnostics requiring specialized tools.
        
     
 
    
    
    
    
        
            Searchability:
        
        
            Likely text-searchable if properly converted from original document.
        
     
    
    
        
            Print Readability:
        
        
            High (typically scanned from original, clear documentation).
        
     
    
    
        
            Original Binding:
        
        
            Not Applicable (Digital Download)
        
     
    
    
        
            Original Paper:
        
        
            Not Applicable (Digital Download)
        
     
 
    
    
    
        
            Engine Type:
        
        
            Single-cylinder, liquid-cooled, DOHC, 4-stroke
        
     
    
    
        
            Bore X Stroke:
        
        
            95 mm x 63.4 mm
        
     
    
        
            Compression Ratio:
        
        
            12.0:1
        
     
    
    
        
            Estimated Horsepower:
        
        
            Approximately 40-45 HP (at crank, stock)
        
     
    
        
            Estimated Torque:
        
        
            Approximately 30-32 lb-ft (at crank, stock)
        
     
    
    
        
            Fuel Delivery:
        
        
            Electronic Fuel Injection (EFI) with 46mm throttle body
        
     
    
        
            Fuel Type:
        
        
            Unleaded gasoline, minimum 87 octane
        
     
    
    
        
            Ignition Type:
        
        
            Electronic Ignition (CDI)
        
     
    
    
        
            Cooling Method:
        
        
            Liquid-cooled
        
     
    
    
        
            Oil Type:
        
        
            SAE 10W-40, API SG or higher, JASO MA certified motorcycle oil.
        
     
    
        
            Oil Capacity:
        
        
            Approx. 2.1 L (2.2 US qt) with filter change.
        
     
 
    
    
    
        
            Transmission Type:
        
        
            5-speed manual with reverse
        
     
    
        
            Clutch Type:
        
        
            Wet, multi-plate
        
     
    
        
            Final Drive:
        
        
            O-ring sealed chain, 520 pitch.
        
     
    
    
        
            Gear Ratios:
        
        
            Specific ratios are detailed within the service manual, but typical for sport ATVs to provide strong acceleration.
        
     
    
    
        
            Transmission Fluid Type:
        
        
            SAE 10W-40, API SG or higher, JASO MA certified motorcycle oil (often shares engine oil).
        
     
 
    
    
    
        
            Length:
        
        
            Approx. 1830 mm (72.0 in)
        
     
    
        
            Width:
        
        
            Approx. 1150 mm (45.3 in)
        
     
    
        
            Height:
        
        
            Approx. 1060 mm (41.7 in)
        
     
    
        
            Wheelbase:
        
        
            Approx. 1270 mm (50.0 in)
        
     
    
        
            Ground Clearance:
        
        
            Approx. 230 mm (9.0 in)
        
     
    
    
        
            Dry Weight:
        
        
            Approx. 180 kg (397 lbs)
        
     
    
        
            Fuel Capacity:
        
        
            Approx. 10 L (2.6 US gal)
        
     
    
    
        
            Front Tire Size:
        
        
            AT 21 x 7-10
        
     
    
        
            Rear Tire Size:
        
        
            AT 20 x 10-9
        
     
    
        
            Front Wheel Type:
        
        
            Aluminum alloy
        
     
    
        
            Rear Wheel Type:
        
        
            Aluminum alloy
        
     
    
        
            Bolt Pattern:
        
        
            4x110 mm (Front and Rear)
        
     
 
    
    
    
        
            Atv Safety Standards:
        
        
            Adheres to ANSI/SVIA-1-2003 and OSHA standards as applicable for ATVs.
        
     
    
    
        
            Braking System:
        
        
            Hydraulic disc brakes front and rear for effective stopping power.
        
     
    
        
            Throttle Limiter:
        
        
            Often includes an adjustable throttle limiter for new riders (covered in manual).
        
     
    
    
        
            Frame Construction:
        
        
            Chromoly steel frame for strength and rigidity.
        
     
    
        
            Ergonomics:
        
        
            Designed for rider control and comfort.
        
     
    
        
        Protective Gear Recommendations
    
 
    
        
            Gear List:
        
        
            Full-face helmet, eye protection, gloves, long sleeves, long pants, boots covering the ankle.
        
     
 
    
    
    
        
            Instrument Cluster:
        
        
            Digital display showing speed, RPM, odometer, trip odometer, fuel level (if equipped), warning lights.
        
     
    
    
        
            N A:
        
        
            No advanced driver-assistance systems typical of automotive technology.
        
     
    
    
        
            N A:
        
        
            No Bluetooth or smartphone connectivity.
        
     
 
    
    
    
        
            Initial Inspection:
        
        
            First 20-hour (or 1-month) service critical for engine break-in.
        
     
    
        
            Oil Change Interval:
        
        
            Every 100 hours or 6 months, whichever comes first.
        
     
    
        
            Air Filter Cleaning:
        
        
            Recommended every 20 hours or more frequently in dusty conditions.
        
     
    
        
            Chain Tension Adjustment:
        
        
            Check and adjust every 20 hours of operation.
        
     
    
        
            Spark Plug Replacement:
        
        
            Recommended every 100 hours or annually.
        
     
    
    
        
            Coolant Type:
        
        
            Ethylene glycol-based antifreeze with corrosion inhibitors, mixed 50/50 with distilled water. (Check manual for specific type if different).
        
     
    
        
            Brake Fluid Type:
        
        
            DOT 4 hydraulic brake fluid.
        
     
    
    
        
            Common Wear Items:
        
        
            Brake pads, chain and sprockets, tires, wheel bearings, suspension bushings.
        
     
    
        
            Efi System Considerations:
        
        
            While generally reliable, issues can arise from fuel quality, sensor failures (e.g., TPS, MAP), or injector clogs. Manual offers basic troubleshooting for these.
        
     
    
        
        Maintenance Schedule Reference
    
 
    
        
            Schedule Location:
        
        
            The manual provides a detailed periodic maintenance chart based on operating hours or time.
        
     
 
    
    
    
        
            Parent Company:
        
        
            Bombardier Recreational Products (BRP)
        
     
    
    
        
            Ds Lineage:
        
        
            The DS 450 was Can-Am's entry into the high-performance sport ATV market, aiming to compete with established Japanese models.
        
     
    
        
            Design Focus:
        
        
            Developed with a focus on lightweight chassis, powerful engine, and advanced suspension for racing and sport riding.
        
     
    
    
        
            Manufacturing Location:
        
        
            Valcourt, Quebec, Canada
        
     
    
        
            Production Years:
        
        
            The DS 450 was produced from approximately 2008 to 2013/2014, with various updates and trim levels.