Abufletcher--

Sorry I do not have a picture - but is very easy.

This is the way I do it:

1. Remove needle valve from carb
2. I then drill out and tap existing extension hole (Use drill press)
3. Use very short socket head screw (1/4" or grind sorter if you like) with Lock-tite.
4. drill hole in cowl the size of the ball driver shaft. (It is important to line up access hole to the center of needle valve.

There maybe other ways but this is easy and works for me.

Mark