PURPOSE: To avoid hard starting on engine by connecting the metering chamber of a carburettor to a pressure accumulator via a primer pump and connecting this pressure accumulator to a fuel nozzle together with connecting the accumulator to the fuel tank.
CONSTITUTION: The metering chamber 16 of a diaphragm type carburettor 2 is connected to a pressure accumulator 120 via an electric primer pump 37. The pressure accumulator 120 is connected to a fuel nozzle 14 arranged in the air intake passage of the carburettor 2 via an electromagnetic valve 101 together with connecting the accumulator to the fuel tank 35 via a relief valve 107. If the electromagnetic valve 101 is made to open at the same time of cranking an engine 27 with a sel-motor 46, fuel in the pressure accumulator 120 is spurted into the air intake passage 17 from the fuel nozzle 14 via a pipe 81. In such wise, in a case of starting, rich mixture is made in the carburettor 2, sent to the engine 27 and the engine is started surely.
SESHIMO YOSHIMI
KOBAYASHI TAKESHI
