Easy, look at this picture. Remove the cover on the carb. Drill a hole in there with #16 drill and tap with tap it for 6-32 thread. Also make a hole of the same size in the back cover of the engine (See the picture above) and use a fule nipple.

If you decided to drill a new hole in the top cover, make sure the other hole on the side is covered. Or if you don't want to drill a hole there, just use the small hole on the side.

Borna