One end attaches to the governor link in the same place as the other spring, the other end attaches to a fixed lug on the mounting bracket. The spring is loose most of the time - it's purpose is to stop the revs from dropping too low when the speed control is moved to 'SLOW'. This is necessary because the primitive carburettor fitted has no idle circuit.
phil_saunders(a)bigfoot.com
Phil Saunders
November 2010