Carburetor for stratified scavenging two-stroke engine

A carburetor for a stratified scavenging engine, the carburetor comprising:

• an intake air passage configured to receive air filtered by an air cleaner and create an air-fuel mixture;
• a throttle valve arranged in the intake air passage, the throttle valve being a butterfly valve, wherein, in response to the throttle valve being placed in a fully-opened state, a fresh air passage and an air-fuel mixture passage are formed by the throttle valve, air coming out of the fresh air passage being supplied to an upper portion of a scavenging passage of the stratified scavenging engine, and an air-fuel mixture coming out of the air-fuel mixture passage being supplied to a crankcase of the stratified scavenging engine;
• and
• a first air flow guiding member configured to adjust a flow of gas passing through the fresh air passage and/or the air-fuel mixture passage and direct the flow of gas toward a downstream side,
• wherein the carburetor further comprises a main nozzle or a main port for supplying fuel to the intake air passage and at least one idle port for supplying fuel to the intake air passage with the at least one idle port located on a side downstream of the main nozzle or main port, wherein the first air flow guiding member is arranged in the fresh air passage and configured to adjust the flow of the gas passing through the fresh air passage, an upper surface of the first air flow guiding member is positioned above a shaft of the throttle valve, the main nozzle or main port is arranged in an intermediate position in a longitudinal direction of the first air flow guiding member.