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
Terrainability
Power
Design
