To provide a low-cost, rugged, durable, and reliable engine that starts positively at idling.
This pull-cord start system has a recoil pulley coupled to a crankshaft of the combustion engine and a pull-cord wound about the recoil pulley that is pulled to rotate the recoil pulley and thereby start the engine. A throttle override device of the pull-cord start system has a shuttle coupled to the pull-cord that moves from a biased rest position to an active position when the pull-cord is being pulled by a user. The throttle override device and a link mechanism of a Bowden cable extending between a throttle control and a throttle valve of a carburetor is interlinked to the shuttle so that actuation of the throttle control when the shuttle is in the active position will not open the throttle valve that is biased to its idle position.
COPYRIGHT: (C)2008,JPO&INPIT
Sadao Matsumura
Isamu Kakiuchi
Fumio Takino