Engine performance booster technology characterizes the 2 -stroke motorcycle engine . Yamaha apply YEIS ( Yamaha Energy Induction System ) on the type RX , KIS candidate Kawasaki ( Kawasaki Integrated System ) on Ninja variants , whereas the Honda RC - Valve . The goal is to create a more powerful acceleration of the motor with fuel efficiency calculation .
Fuel efficiency as leverage should vomit wasted fuel , utilizing Yamaha carburetor intake channel to the reed valve . When there is a suction step , the piston extends from the fall of the TMA ( top dead center ) to BDC ( bottom dead center ) . The fuel will be spread into the combustion chamber through a hole in transfer , which of course preceded the opening valve .
When the piston up from BDC towards TDC , a mixture of air and gasoline largely suppressed up and detonated spark plugs . Some were pushed out the valve through the hole - transfer and close the intake . At high RPM , the pistons run fast . The rapid opening and closing the valve , make the most of the gas out into the intake hose .
With YEIS , mix air with the fuel mist is channeled into a plastic tube . The tube is usually in between the tank and the backbone . Exhaust hose still exist , but changed into a hose to the tube YEIS . The second occurs when the intake stroke , the fuel mixture in the tube YEIS be sucked back into the combustion chamber .
Of course , along with the incoming fog and air fuel mixture from the carburetor new . Automatic volume mist supply fuel to the combustion chamber faster and better . As a result, the explosion in the engine more powerful . As a result, better acceleration power . In addition , there was a fuel efficiency without any wasted gasoline .
Similar but not identical , R & D Kawasaki complement the sports variant with a technology called KIS aka Kawasaki Integrated System . The process is similar YEIS KIS work . The difference is, the tube is not made through the intake hose ( flange ) . Hole in block transfer out - branching machine made , so that air can be directly mixed with the fuel stored in the tube KIS .
The tube is placed in front of the top of the engine block . The line merges with the hole transfer . Occurs when the intake stroke , the contents of the tube KIS sucked into the combustion chamber at the same influx of new fog carburetor .
This advanced technology also made Honda NSR sports variant . On the engine block is made of two additional transfer has a valve hole . Two of these valves open at higher rpm ( range 5000-7000 rpm ) that deliver additional fuel supply to the combustion chamber .
Valve commanded open by the electronic circuit in the CDI . The trick takes into account the speed burst pulser ignition signal is sent to the CDI . When reaching high rounds , usually begins 5,000 rpm , the chips began to read . Then ordered the electronic circuit to open two additional transfer of holes .
