Easy-Spin is a Briggs trademark, so that clears up the brand, but we need the model and type to access the IPL. We will also need the code, to identify the date of manufacture.
The direction of rotation that stretches the governor spring, is increasing the speed. The kill switch operates in the opposite direction to that, at the end of the movement.
I won't know how the choke works until we see the manual - it may be automatic at the extreme high speed position (Choke-A-Matic), or it may have a thermally-coupled automatic choke (found only on third design generation, apart from some current engines) or it may be manually operated. I think it is much too old for a primer.
