move position of child object on update - increment too small?

Hi - I have an object that I simply want to move from its current position to a known position, but when I try to script it, the object moves much further than expected / further than in the editor window. Anybody know what I'm doing wrong? I've tried both position and positionLocal. I think it may have to do with the fact that the number values are so small.

So currently the y position of the object I want to move in the editor window is: .0007. I want to move it to .001. Here's my code:

 var leverPos = lever.transform.position.y;
 var leverMoveMax = .001;
 
 function Start(){
 lever.transform.localPosition.y = leverMoveMax;
 }