You adjust the position of the cork, up or down,
to a specified fuel level in the float bowl.
In these the position is fixed by the slot that the
clips goes in on the needle. It is not that critical on
this motor. However in my experience it can be
difficult to get the needle and seat to seal in
these so you want to use as large a cork possible.
Alignment of the hole in the center of the is cork
is critical as you don’t want the needle dragging
where it fits in the float bowl cover.
Tubs
A "Boathouse Repair" is one thats done without having tools or the skills to do it properly.