Why won't it start

[Robert Leigh]

Carrying on from my last post when I found the petrol pipe, pump to carburettor half blocked with solder & no banjo bolt filter, I decided to strip the carb cleaned all the jets by compressed air and then rebuilt the carb. Looking at diagrams of the Zenith 26AV carb it shows washers on the main,compensating & slow running jets there's no washers on mine, and there is no progression jet & plug fitted. Before stripping the carb the engine run perfect once started, it did take a bit of starting when cold no problem when hot. Now it will not start, when trying to start petrol drips from the choke end of carb the choke shuts fully & opens fully and the plugs are getting wet with petrol, I have checked all compression's 110, timing set at TDC,, firing order 1342, point gap 12 th tried new pugs with 16 th gap, plenty of petrol in tank.  What am I missing    ( 1938 Ruby 750cc )

Thanks for all replies 
Graham

Have you got a modern rotor arm? I have known them to fail by shorting through the centre so that the spark goes straight to earth on the central spindle. It happened on an MOT on a friend's car. I sorted it instantly and the MOT man's flabber was ghasted!
Robert Leigh