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A stroke is the action of a piston travelling the full length of its cylinder.In a two-stroke engine, one of the two strokes combines primarily the intake stroke and the combustion stroke, while the other stroke primarily combines the compression stroke and the exhaust stroke, though technically since both ports are exposed during both the combustion and compression strokes, some reversion ...
It is powered by a twin-carburetted reed valve inducted, liquid-cooled, 347cc parallel-twin two-stroke engine, with a bore and stroke of 64mm x 54mm. It was the first RD series from Yamaha to receive the 'YPVS' Yamaha Power Valve System.
Two-stroke engines often have a higher power-to-weight ratio than a four-stroke engine, since their power stroke occurs twice as often. Two-stroke engines can also have fewer moving parts, and thus be cheaper to manufacture and weigh less. In countries and regions with stringent emissions regulation, two-stroke engines have been phased out in ...
The power stroke begins at TDC ([0°]; injection of fuel leads TDC by 4° [356°], such that injection of fuel will be completed by TDC or very shortly thereafter; [citation needed] the fuel ignites as fast as it is injected), after the power stroke the exhaust valves are opened, thereby greatly reducing combustion gas pressure and temperature ...
A sleeve valve takes the form of one (or in the case of double sleeve valves, two) machined cylinders which fit concentrically between the piston and the cylinder block bore of an internal combustion engine having cross-flow induction/exhaust. These sleeves have inlet and exhaust ports machined in the periphery, analogous to a two-stroke motor ...
The DT200 or WR200 used a liquid cooled, oil injected, (autolube) case reed inducted, Y.P.V.S. power valved (electronically operated power valve system while motocross bikes are equipped with mechanically operated power valve system),flat slide carburetion, resin reeds, single cylinder, 2 stroke engine.
A post on X shows Trump ally Steve Bannon stating that President-Elect Donald Trump can actually run for a third term as President by law. Verdict: False The 22nd amendment of the U.S ...
Pages in category "Two-stroke engine technology" ... Power band; Two-stroke power valve system; S. Scavenging (engine) Schnuerle porting; Split-single engine; T.