2021 Yamaha Wolverine X4 850 EPS SE

Terrainability

Innovation is found throughout the Wolverine X4. New Sachs self-level with dual rate springs are fitted on the rear of the unit and provide consistent comfort and maintain wheel travel under load.

Power

Wolverine X4 comes with an all-new 847cc in-line twin cylinder engine that provides smooth and seamless acceleration throughout the RPM range thanks to a new YCC-T Drive-by-Wire electronic throttle. 

Design

Roomy 4-person seating is offered through contoured high back bucket seats that offer an industry only 4-to-2-seat convertible bed. Superior versatility makes it easy for hauling additional passengers or gear without sacrificing class-leading terrainability.

Key Differences between Wolverine X4 EPS & Wolverine X4 EPS SE

• Factory installed WARN® winch
• Colour matched interior
• Two-tone seat
• Aggressive tire pattern

ENGINE

Compact, 847cc, liquid-cooled, DOHC, 8-valve, inline twin cylinder engine provides lots of torque across the rev range with linear throttle response

• Features Yamaha's Chip Controlled Throttle (YCC-T)
• 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 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 & colour matched springs
• 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, colour matched 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 & 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 (HDPE - high density polyethylene) mounts
•  cab enclosure (windshield, washer fluid, windshield wipers, dome light, etc.) mounts
•  radio mount
•  2nd battery kit ready

Details

• NEW Factory Installed WARN® Winch.
• Single lever tailgate
• Truck style tailgate with dual lanyards to support when open.
• Marine grade waterproof connectors.
• Front & rear floor drains with rubber drain covers.
• Dual 12 volt DC outlets
• (10A / 125 watt each) in front & rear seating areas
• Yamaha diagnostic tool connector
• YDT tool performs many functions & saves time & money when diagnosing issues. YDT can also store service history too