Abstract: A two-stroke engine with external fuel mixture generation in a carburetor. The engine including a suction funnel having an interior disposed upstream of the carburetor. The engine further includes a tapered insert having a narrow end and a wide end disposed in an area of an inlet port of the suction funnel. The insert at least partially defines the interior of the suction funnel, and the insert tapers in a flow direction of air flow from the wide end to the narrow end. Accordingly, a diameter of the interior of the suction funnel adjacent to the narrow end of the insert is substantially larger when compared to the narrow end of the insert.

Abstract: A two-stroke engine with external fuel mixture generation in a carburettor. The engine including a suction funnel having an interior disposed upstream of the carburettor. The engine further includes a tapered insert having a narrow end and a wide end disposed in an area of an inlet port of the suction funnel. The insert at least partially defines the interior of the suction funnel, and the insert tapers in a flow direction of air flow from the wide end to the narrow end. Accordingly, a diameter of the interior of the suction funnel adjacent to the narrow end of the insert is substantially larger when compared to the narrow end of the insert.

Abstract: A muffler has a housing (2) through which exhaust gas flows and which has at least one housing chamber (3, 5) and in which deflecting elements (13 to 16) serving to make the gas swirl are arranged spaced one behind another along a main axis (19?) of the housing in a positionally fixed manner. A disk-shaped body (17?) having guide vanes (18) with slots (18?) therebetween is provided as each deflecting element (13 to 16) and extends over the clear cross section of the housing (2). The guide vanes of adjacent disk-shaped bodies respectively deflect the flow in opposite directions about the main axis (19?) of the housing.