update
turned out to be a bit of a marathon this one.
The constant flooding turned out to be a combination of stuff, the actual flooding as such was the not need washer under the float needle housing (cured) but fuel dripped from the carb once again, this turned out to be the float chamber and the float chamber cover, float chamber is slightly off round,looks like it's had a bash on one side at some time, a sheet of glass and some wet n dry level that off but the cover still rocked when in place, placed on a good carb it still rocked so think it may have got warped when pull up to the off round flat chamber, new cover cured that one.
Guess what the carb still leaked , drips of the jet housing, this took some finding as first I suspected the float chamber again, just could not see where the hell it was coming from so made a tower of three wooden boxes and sat a cast head on then with carb on and fashioned a fuel feed to it, this allowed me to watch at eye line height, defo was the jet housing leak, changed fibre washers a few time, pulled the nut up as tight as I dare, still leaked.
Took the jet housing and the jet block out and screwed them together out of the carb boddy and walla the jet housing was bottoming before the fibre washer could seal, it wasn't much and screwing the two together at time or two and an extra thin paper washer under the jet block was enough, at last leak proof.
A few other issues arose, I had been trying other parts from a known good barb to cure the various ills and whne it came to put the good carb back I noticed the needles where different lengths - which was which ???, I could have stripped the carb off my other bike but would still have been a correct needle short so got a new one, in the process I found a chart on Andy Teirens (sp) site giving info on monobloc needle dimensions, I mention this aas it may be usefull to somebody here at some point.
