I just got a Dellorto PHBG racing edition and an puzzled about all of the ports on the thing. The big upward pointing port is obviously fuel, there seems to be a vacume port in front of the slide. There is a horizontal pointiong port on the side of the carb which I think is for oil injection? This is important because I have a Tomos and it has oil injection. Then there are two ports up higher on the carb body by the slide. Are these bowl vents that don't need to be hooked up to anything?
Finaly I can't seem to find the choke but there is another nipple for a cable of some sort and it attaches to a slide valve thing. Is this for cold start enrichment? Does anyone bother to hook this up?
So I think I can hook my oil injection to the side port, the fuel to the big upward facing port, cap off the port in front of the slide and keep the old enrichment valve unhooked up?
I did a search and can't find anything.