CAUSEWAY YAMAHA

  OFF-ROAD RIDING’S ANSWER TO MSG

If you ride for the taste, then consider this the flavour enhancer of your dirt biking experience. There’s nothing like the full-blooded, red-meat-and-three-veg thrust of a big-bore rooster like the WR450F to get that adrenalin pumping.

The second thing you’ll notice about riding the WR450F (the first being a slight blurring in the periphery of your vision), is just how tractable and controllable our engineers have managed to make a big horsepower dirt bike.

The WR450F’s rock-solid reliable, five-titanium-valved engine is nestled in a YZ-bred aluminium frame carefully engineered from castings, forgings and extrusions, that provides just the right amounts of both flexibility and rigidity where it’s needed.

Fast, forgiving, fat free… and deliciously fast.

With 449cc of liquid-cooled DOHC four-stroke and five titanium valves delivering broader power than ever, high over-rev capacity and crisp, linear throttle response, there’s not much that can stand in your way. Special camshafts, carburation, intake ports and exhaust all work together to produce an engine with mind-boggling low- and midrange power and a bullet-proof reputation.

FEATURES

♦   449cc five titanium valved engine delivers more broad power than ever, with special WR camshafts, carburation, intake ports, exhaust, etc., all working together for mind-boggling low- and midrange power.

♦   Special crank balance factor and AC generator provide super-smooth running. A piston oil-jet provides increased cooling for long life.

♦   Dry-sump lubrication system carries the oil reservoir inside the engine cases, for excellent mass centralization and simplified plumbing.

♦   Digital CDI ignition system delivers more precise spark and monitors engine speed to ensure optimal timing for fast, strong response during hard acceleration.

♦   Highly evolved five-titanium-valved engine starts with the push of a button.

♦   Wide-ratio five-speed transmission uses strengthened gears and YZ450F-spec multiplate clutch – good for quick-hitting power in the woods as well as eye-opening top-end power.

♦   Cool digital enduro computer offers speedometer, clock, tripmeter in basic mode or pace management functions such as timer, distance-compensating tripmeter, average speed and more when switched to race mode.

♦   Lightweight exhaust system maximises engine power and allows hassle-free replacement of oil filter. Aluminium muffler with spark arrestor looks trick and keeps things light.

♦   YZ-inspired aluminium frame helps reduce weight while optimizing mass centralization. An extensively tested assembly of aluminium forgings, castings and extrusions, the WR frame retains legendary Yamaha handling and response.

♦   Large-capacity radiators with reinforcements ensure maximum cooling efficiency with great strength.

SPECIFICATIONS
ENGINE/IGNITION/TRANSMISSION
Type	Liquid cooled, 4-stroke, DOHC, 5-valve
Displacement - (cc)	449
Bore Stroke - (mm)	95.0 x 63.4
Compression	12.3:1
Lubrication	Dry sump
Fuel Management	FCR MX39
Ignition	CDI
Starter	Electric & Kick
Fueltank - (L)	8
Oil Capacity - (L)	1.2
Transmission	5-speed
Final Transmission	Chain drive
CHASSIS
Length - (mm)	2190
Width - (mm)	825
Height - (mm)	1300
Seat Height - (mm)	990
Wheelbase - (mm)	1485
Clearance - (mm)	373
Wet Weight	123kg with 8 litres of fuel
FRONT END
Suspension Front	Telescopic fork
Tyres Front	90/90-21 54R
Brakes Front	Single disc
REAR END
Suspension Rear	Swingarm
Tyres Rear	130/90-18 69R
Brakes Rear	Single disc