2021 Yamaha Wolverine X4 850 EPS

Terrainability

Extreme terrain calls for tires that handle the abuse while providing the confidence-inspiring grip and feedback. The Wolverine X4 rolls on 27-inch GBC® Dirt Commander® radial tires that not only improve ground clearance and traction but feature a durable 8-ply construction for exceptional durability.

Power

The 2021 Wolverine X4 takes comfort to a whole new level. The driver's seat has more adjustability while the upgraded driver pedals and new easily adjusted seatbelts without the need for tools improve comfort for a wider range of driver heights. The new blue backlit meter makes reading the display a breeze.

Design

The newly designed doors improve entry and exit for both the driver and passengers while the newly styled ROPS give the Wolverine X4 a sleek new look. With a more compact shoulder bolster and cut outs for seamless integration of accessory speakers, you'll easily be able to hop in the Wolverine X4, and you won't want to get out.

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

 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

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

"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

Lightweight gear driven balancer shaft.

• reduces engine vibration for excellent rider / passenger comfort
• reduced vibration also improves engine durability

Forged connecting rods feature a "nut less" design.

• rods are heat treated for excellent durability

Lightweight, concaved forged aluminum short skirt pistons.

• design aids in fast engine response & reduced mechanical vibration
• excellent durability

 "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

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

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

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

 "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

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

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)

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"

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)

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

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

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

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

High performance direct ignition coils (ignition coil is built into the spark plug caps).

• reduces weight & complexity

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)

High output AC magneto.

• AC magneto produces 600 watts of power for the vehicle & related optional factory accessories

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)

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

ROPS roll over protection structure (ANSI / ROHVA-1-2011 standard). *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

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

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

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

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

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

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

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

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)

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

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

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

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

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

LED Lighting.

• dual LED headlights
• dual LED tail lights with brake light function

Heavy duty, 2" receiver style trailer hitch mount.

• towing capacity is 907 kg (2,000 lbs.)
• maximum torque weight is 50 kg (110 lb)

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

Low maintenance, sealed battery (battery should be charged during extended storage).

• convenient under hood location for protection & accessibility

All Wolverine X4s have been designed with accessory installation / integration in mind.

• sun top / roof mounts
• cab enclosure (windshield, washer fluid, windshield wipers, dome light, etc.) mounts
•  radio mount
•  2nd battery kit ready

Details

• Single lever tailgate with dual lanyards to support the gate when open
• Marine grade waterproof connectors throughout the vehicle
• Front & rear floor drains with rubber drain covers
• Dual 12 volt DC outlets (10A / 125 watt each) in front & rear seating areas
• Under-hood Yamaha diagnostic tool connector (YDT tool performs many functions & saves time & money when diagnosing issues. Plus YDT can also store service history too)