Operating-mode position selector arrangement for internal combustion engine

An operating-mode position selector arrangement for an internal combustion engine in a portable handheld apparatus such as a motor-driven chain saw, the engine including:

• an electrical ignition system, a fuel-metering device for supplying an air/fuel mixture to the engine, the fuel-metering device including an intake channel for conducting the air/fuel mixture to the engine, a throttle lever, a throttle flap pivotally mounted in the intake channel and a fuel-metering device for supplying an air/fuel mixture to the intake channel of the engine, the operating-mode position selector arrangement comprising:
• operating-mode position selector mounted on said apparatus so as to be movable between a start position, an operating position and a stop position;
• starter means mounted in said intake channel and being movable between an at-rest position wherein said starter means does not influence the metering of fuel in said air/fuel mixture and an in-service position for increasing the quantity of fuel in said air/fuel mixture;
• first connecting means operatively connecting said position selector to said starter means for holding said starter means in said in-service position when said position selector is in said start position;
• means for bringing said starter means into said at-rest position when said position selector is moved into said operating position;
• linkage means operatively connecting said throttle lever to said throttle flap;
• second connecting means for holding said throttle flap in a first position when said position selector is in said start position;
• means for releasing said throttle flap for actuation via said throttle lever and said linkage means when said position selector is moved into said operating position;
• said ignition system having a system terminal;
• a ground terminal;
• a resistance means;
• and,
• switching means operatively connected to said position selector for connecting said system terminal to ground in said stop position and for connecting said resistance means between said terminals when said position selector is moved into said operating position.