ENGINE -
Rubber mounted, compact, 847 cc, liquid-cooled, DOHC, 8-valve (4-valves / cyl), inline twin cylinder engine with Yamaha's Chip Controlled Throttle (YCC-T) provides lots of torque across the rev range with linear throttle response.
- compact engine design allows it to be placed in the centre of the chassis allowing a shorter wheelbase for excellent off road capabilities
- engine is designed to provide smooth, quiet operation for maximum enjoyment
- 4-point rubber engine mounts reduce vibration
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4-valve, downdraft style combustion chamber with 10.5:1 compression ratio.
- 4-valve design maximizes flow into & out of combustion chamber
- 31.5 mm intake & 26.5 mm exhaust valves
- stainless steel valves feature an Isonite surface treatment & carburized tips for excellent durability & wear resistance
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Lightweight hollow camshafts.
- cam profiles are designed to accentuate torque & power throughout the rev range
- automatic cam chain tensioner reduces both mechanical engine noise & maintenance
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"Cross Plane Concept" 270 degree crankshaft.
- design reduces inertia torque while emphasizing linear torque
- design has been optimized to achieve strong torque over a broad rpm range
- CP Concept offers excellent "drive-ability" and linear throttle response
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Lightweight gear driven balancer shaft.
- reduces engine vibration for excellent rider / passenger comfort
- reduced vibration also improves engine durability
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Forged connecting rods feature a "nut less" design.
- rods are heat treated for excellent durability
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Lightweight, concaved forged aluminum short skirt pistons.
- design aids in fast engine response & reduced mechanical vibration
- excellent durability
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"Liner less" bores with direct nickel ceramic plating sprayed directly on the aluminum block.
- design eliminates the need for liners / sleeves & reduces weight
- excellent heat dissipation & durability for consistent power delivery
- cylinder block is incorporated into the upper engine case to reduce weight
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Offset cylinder design.
- cylinder is "offset" relative to the crank (toward exhaust side)
- offset design reduces the side load (friction) on the pistons during the power stroke for improved power output & excellent fuel economy
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Dry sump lubrication system with heat exchanger type oil cooler.
- oil tank baffling system prevents oil starvation in rugged /difficult off road environments
- dry sump oil system reduces engine height for a lower centre of gravity (no deep design oil pan)
- heat exchanger type oil cooler maintains consistent oil temperatures for improved durability
- spin-on type oil filter for fast oil changes
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Yamaha Chip Control Throttle (YCC-T) system (a.k.a. "fly by wire throttle").
- YCC-T electronically controls the throttle valves for outstanding throttle response
- YCC-T provides precise control of intake air volume for a smoother torque curve
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"Closed loop" dual 36 mm Mikuni throttle body fuel injection.
- system uses a throttle position sensor (TPS) for optimum performance (TPS is linked to the ECU & ignition mapping)
- 12 hole injectors for optimum fuel atomization
- system is "tuned" to provide excellent "drive-ability" & "linear" throttle control
- fuel injection benefits include choke-free starting, steady idling during warm up, excellent fuel economy & reduced emissions
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Easy access, high mounted, high flow 11.5 litre air box features primary & secondary air filters.
- primary filter is a washable foam design, secondary filter is a wet viscous paper filter
- no tools, clip-style air box lid for easy access
- air box & ducting are designed to reduce intake noise
- no tools required air box & duct work drains
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Yamaha's industry leading "Ultramatic" CVT (fully automatic) transmission with reverse & downhill engine braking.
- dual range, high - low transmission with reverse. Low range offers more "grunt" for towing or hauling heavy loads or when tackling technical terrain.
- CVT automatically selects the optimum transmission ratio, meaning you are always in the right "gear"
- Ultramatic design offers controllable, confidence inspiring downhill engine braking
- engine braking also reduces brake wear & servicing
- Ultramatic design features a special centrifugal clutch which keeps constant tension on the V-belt to reduce belt wear since the belt does not slip as the clutches engage
- high mounted belt cooling ducts help prevent water ingestion
- V-belt housing has a "no tools required" drain plug
- automotive style, gated, 5-postion shifter (high, low, neutral, reverse & park)
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Super convenient, servo motor controlled, push button On Command 4WD drive system.
- On Command drive system features 3 modes: 2wd, 4wd limited slip & 4wd differential lock
- On Command drive system lets you select the best mode for the conditions... not the machine
- 4wd differential lock provides power to all 4 wheels for maximum traction and "bite"
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Hi-low- reverse transmission features helical cut gears.
- helical cut gears reduce mechanical noise & provide smooth, easy shifting
- transfer case style transmission (separate transfer case bolts to engine)
- console mounted, automotive style gated shifter (H-L-N-R)
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Heavy duty front & rear drive shafts & new design front & rear gear cases.
- single piece front & rear drive shafts
- ring & pinion gears use a spiral design to reduce noise
- front & rear CV drive shafts feature heavy duty "Peest" rubber boots to protect the CV joints for extended service life & durability
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High flow, high efficiency cooling system with recovery tank.
- high mounted rad & special rad side covers offer maximum rad protection
- 7 - blade ring type cooling fan for maximum airflow through the rad
- under hood access panel & drain cut-out built into the rad shroud for easy rad cleaning
- over heat warning buzzer
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Quiet, full stainless steel 2 into 1 exhaust system.
- system features a cleanable spark arrestor to prevent stray sparks from exiting the exhaust
- 3-way catalyzer & oxygen sensor (closed loop fuel injection) help reduce exhaust emissions
- stainless steel design helps prevent rusting
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Maintenance-free transistor controlled ignition (TCI).
- produces a strong spark for fast starts
- provides precise ignition timing / mapping for optimum engine performance at all rpms
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High performance direct ignition coils (ignition coil is built into the spark plug caps).
- reduces weight & complexity
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Speed Key (a.k.a.) Valet Key.
- limits vehicle top speed to 40 km/hr (25 mph) when Speed Key is on
- under hood key operated system (key is removable to prevent tampering)
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High output AC magneto.
- AC magneto produces 600 watts of power for the vehicle & related optional factory accessories
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CHASSIS -
Rugged, compact, round tube steel frame.
- wheelbase is only 35 mm (1.4") longer than 2 seater Wolverine for exceptional off road capabilities & a tight turning radius
- compact design provides nimble, responsive handling & excellent terrain-ability
- special frame design positions the rear seats slightly higher than the front seats
- frame mounted 2" hitch receiver (907 kg / 2000 lb towing capacity)
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Full length steel under frame skid plates (high impact plastic front plate).
- underside of unit is fully protected by rugged steel skid plates with recessed fasteners
- oil drain holes & other access holes in skid plates for easy service-ability
- skid plates enhances terrain ability by allowing unit to slide more easily over obstacles
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ROPS roll over protection structure (ANSI / ROHVA-1-2011 standard).
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Speed sensitive, rack & pinion-type, Electric Power Steering (EPS).
- significantly reduces steering effort resulting in less rider fatigue & improved rider comfort
- speed sensitive system; more assist at slow speeds, less assist at higher speeds for optimum control
- significantly reduces trail feedback through the steering wheel when a wheel strikes an obstacle
- fully sealed EPS system (electrics & gears) with marine grade connectors
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Adjustable, independent double wishbone front suspension with front stabilizer bar.
- KYB oil & nitrogen gas shock with 5-position cam-style preload adjuster
- 246 mm (9.7") of front wheel travel
- front stabilizer bar controls / limits body roll for added confidence & comfort
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Dual "Wide Arc" style front A-arms.
- "Wide Arc" design increases ground clearance in the centre of the machine
- 273 mm (10.7") of ground clearance
- heavy duty plastic CV boot guards
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Adjustable, independent double wishbone rear suspension with rear stabilizer bar & self leveling rear shocks.
- Sachs self leveling "Nivomat" nitrogen charged shocks with dual rate springs
- self leveling shocks help provide consistent ride comfort & maintains wheel travel even when the unit is loaded (people & cargo)
- stabilizer bar controls / limits body roll for added rider confidence & comfort
- 221mm (8.7") of rear wheel travel
- rugged plastic CV boot guards
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Four-wheel hydraulic disc brakes.
- dual 207 mm (8.1") front rotors squeezed by twin piston calipers
- dual 207 mm (8.1") rear rotors squeezed by twin piston calipers
- rear drive shaft mounted 200 mm disc style parking brake with centre console mounted automotive style parking brake lever
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High-Performance 26" MAXXIS tires & aluminum die cast mag wheels.
- tire design enhances steering precision, ride comfort, ground clearance & traction
- rugged die cast aluminum wheels
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35 litre fuel tank.
- low fuel warning indicator light in multi-function meter
- Evap control system helps to prevent raw fuel vapours from entering the atmosphere
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Easy to read, fully digital LCD multi-function meter assembly.
- functions include: speedometer, odometer, dual trip meters, fuel gauge, hour meter, clock, voltage display, On Command mode status, transmission gear indicator, Speed Key mode & various warning lights including low battery, temperature warning & more
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Automotive style dashboard.
- dashboard includes: On-Command switch, ignition switch, 12 volt DC outlet ( 10A / 120W); glovebox & blank accessory plugs for additional accessories
- rear seating area also has 12 volt DC outlet (10A / 120W)
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Adjustable tilt steering wheel & driver's seat.
- 12 degrees of tilt steering wheel adjustability (no tools req'd)
- infinite adjustability within the 12 degrees of movement
- quick adjust driver's seat provides 100 mm (3.9") of movement with 8 pre-set positions of fore-aft adjustability (no tools required)
- high grip, textured front & rear floor surface
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Roomy 4-person seating with 3-point seat belts & passenger hand holds.
- contoured high back bucket seats (4) provide all day riding comfort
- stadium style rear seats are 100 mm (3.9") higher than front seats for excellent passenger sightlines
- quick adjust driver's seat provides 100 mm (3.9") or 8 pre-set positions of fore-aft movement (no tools required)
- high grip, textured front & rear floor surface
- adjustable front passenger hand hold & rear passenger hand holds (non-adjustable) for additional passenger security, confidence & comfort
- easy to adjust, 3-point seat belts for all
- dashboard mounted seat belt & helmet reminder / warning lights
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Colour matched, roto-molded, plastic doors & special shoulder bolsters.
- doors provide added security & comfort for driver & passengers
- doors helps reduce mud & water splash from entering the cockpit
- shoulder bolsters help ensure driver & passengers stay inside the vehicle in the event of a roll over
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Centre console storage & drink holders.
- centre console storage compartment (under centre console arm rest)
- glove box storage compartment
- dual centre console mounted drink holders
- 4-rear console drink holders
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Super versatile, polyethylene, convertible cargo bed.
- 2 sizes of cargo bed are available depending on seating arrangement
- with 4 seats in place the cargo bed measures 220 mm (8.7") L x 1100 mm (43.3") W X 330 mm (13") H & can hold 71 kg (158 lb) of cargo
- folding down the convertible rear seats (leaving 2 front seats only) the cargo bed measures 900 mm (35.4") L x 850 mm (33.5") W X 300 mm (11.8") H & can hold 272 kg (600 lbs.)
- rear seats can be folded without the use of tools
- 8 steel tie down points in the full size bed; 4 points in the smaller bed configuration
- single lever tailgate openerNote: regardless of configuration cargo bed does not dump
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LED Lighting.
- dual LED headlights
- dual LED tail lights with brake light function
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Heavy duty, 2" receiver style trailer hitch mount.
- towing capacity is 907 kg (2,000 lbs.)
- maximum torque weight is 50 kg (110 lb)
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Aggressive styling with front & rear over fenders.
- injection-molded body components resist damage
- slant low nose design provides excellent visibility of the terrain ahead
- stylish front & rear over fenders reduce splash
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Low maintenance, sealed battery (battery should be charged during extended storage).
- convenient under hood location for protection & accessibility
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All Wolverine X4s have been designed with accessory installation in mind.
- sun top / roof mounts
- cab enclosure (windshield, washer fluid, windshield wipers, dome light, etc.) mounts
- radio mount
- 2nd battery kit ready
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The YFZ50 is the ultimate machine to rev-up a passion and develop a lifelong rider. Incorporating parental adjustable RPM limiter and a fully automatic CVT transmission, the YFZ50 is designed and proven to provide the best riding experience for your new riding buddy