Petter M Jelly Mould

I have been having a tinker with my 5hp Jelly mould head Petter M, I have had a chuff or two out of it but no more. In doing a card strip I found there isn't an atomizer nozzle on this like the later engines, should the Jelly have one or is it right to just have a stub out the back of the carb?

Hello do you now how old the engine is and some photos of the fuel bowl will help me tell you
Jonesey

if you dont know how to post photos on here there is a link on the forum that helps you do so...
but if you know how to do it then please ignore this info.
regards.mike.

I'll get some photos at the weekend. I think it is 1915 ish