What should be done with the throttle linkage during installation?

Connecting the throttle linkage and the dampening spring to the carburetor's throttle assembly and the governor arm is essential for proper engine operation. The throttle linkage is responsible for translating the driver's input (typically through the accelerator pedal on a vehicle) into a corresponding position of the throttle plate in the carburetor. This connection ensures that when the driver accelerates, the engine receives the correct amount of air and fuel mixture necessary for optimal performance.

Additionally, the dampening spring plays a crucial role in managing the throttle response, making it smoother and preventing sudden changes in throttle position that could lead to stalling or erratic engine behavior. Connecting both components ensures that the engine can smoothly transition between different speeds and loads, contributing to overall efficiency and performance.

Other options do not facilitate the proper operation of the engine. Leaving the throttle linkage disconnected until the first start would prevent the engine from responding to any throttle input, which is essential for operation. Connecting it directly to the engine block could lead to improper throttle function and potential engine damage. Replacing the throttle linkage entirely is unnecessary unless there is physical damage or malfunction; typically, the existing linkage can be connected and adjusted for proper functioning.