Hello , can anyone advise me . Is there a plug or jet in the bottom of the needle tower by the needle tips , see pic !! Hope it downloads ? there is a plug on the choke lever side but there's also a hole on the flange side which looks as though there should also be a plug , no threads are there so maybe a push in one ?? thanks for help , Ken !!??? Cannot find out how to attach pics so will put on yahoo groups !!!