R15 Uses DiASil Cylinder

Hi ppl,

We are going to touch the heart.The 150cc engine which powers the YZF R15 is the India’s first 150cc liquid cooled engine. Yamaha has brought lot of advanced technologies which are usually used in higher displacement engines for this 150cc mill. Here are few highlights of YZF R15’s hi-tech engine.

YZF R15 makes use of DiASil (Die-casting Aluminum-Silicon) cylinder. The DiASil Cylinder is an all-aluminum cylinder made possible by an exclusive Yamaha aluminum forging technology. Because it uses a 20% silicon aluminum alloy, it is possible to create a cylinder wall that is so hard and durable that it eliminates the need for a conventional steel cylinder sleeve. And, because the cylinder is all aluminum, it has excellent heat dissipation qualities (cooling capacity is improved by 60% and reduces engine weight (by 30%) at the same time.

YZF R15 makes use of forged piston (India’s first) which enables lighter piston design and excellent power developement.YZF R15’s 4-valve combustion chamber adopts centrally mounted spark plug and six hole type injector which leads to path breaking performance.
A compact radiator cools the engine to maximize stablity and performance.

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