- Short-stroke 998cc DOHC, 20-valve, liquid-cooled inline
four-cylinder engine.
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- Dual-valve fuel injection system uses motor-driven secondary
throttle valves and 32-bit ECU for super-responsive,
instantaneous power delivery.
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- Two-piece ergonomically designed fuel tank carries fuel in the rear section, for good centralization of mass, while the front half contains a Ram-Air-fed airbox for increased power.
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- Lay-down design cylinder head—40 degrees forward—
optimizes weight distribution, straightens intake tracts
for improved cylinder filling, and allows frame to pass over
instead of around the engine for great strength and a
narrow chassis.
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- Closed-deck cylinder block increases strength and allows a
narrow engine in spite of big, 77mm bores.
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- Narrow-angle five-valve combustion chambers produce a
highly efficient 12.4:1 compression ratio. Big valves and
high-lift cams flow plenty of air.
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- Carburized connecting rods with fractured big ends produce a
quick-revving engine with excellent high-rpm durability.
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- High silicon-content ceramic-composite cylinder sleeves
ensure great heat dissipation for consistent power delivery
and reduced friction.
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- Strong, yet lightweight clutch and close-ratio six-speed
gearbox with triangulated shaft layout for great strength,
compactness, and quicker acceleration.
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- Titanium underseat exhaust system (with stainless steel
midpipe and catalyst) contains a titanium EXUP valve for
a broad, seamless powerband.
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- High-efficiency curved radiator and an aluminum liquidcooled
oil cooler maintain stable operating temperature.
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- Direct ignition coils, dual-electrode spark plugs and highoutput magneto deliver extremely accurate, reliable firing.
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- AC generator behind cylinder block produces a narrow engine
with excellent cornering clearance.
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