904 kickdown

So i have 904 transmission with lokar kickdown cabble. Problem is the trans kickdown lever dosent fully go back when i let off thortle. if i crawl under the car i can push the lever like half inc towards the engine. Im thinking of adding spring to lever. but should kickdown lever be completly towards the engine when no thortle is pressed?
or do i need to adjust "lever rest position" to where i start feel pressure when moving it toward rear off the car.
tried to check lokar instructions but they only speak about wot adjustment.
Thanks :)