Abstract: Carburetor for internal combustion engine for movable equipment such as a chain saw which includes throttle and choke valves, each of which is actuatable by its own actuating member. Furthermore, a holding member for the throttle valve is provided, which holding member is operatively separate from the choke valve and actuatable by a third actuating member. The holding member cooperates with the throttle valve so that it is moved to a defined start position when the throttle valve is actuated, and holds the throttle valve in its start position via detent means. When the internal combustion engine is running and the throttle valve is displaced further by its own actuating member, the detent means is released so that the holding member is returned to its rest position by a return spring. Operatively separating the holding member and choke valve allows to move the throttle valve, for warm starting the engine, to its start position without requiring any displacement of the choke valve.