Thanks again for your comments and advice guys,

No catcher with this one unfortunately, I believe they would have been the metal type so probably didn't stand the test of time?

I don't think the timing is to blame as it will start once the engine has been primed up, it just wont continue running. I wasn't sure about poking wire down the jet as I thought it might damage/scratch the internal bore? I have to admit though I am sorely tempted to as I recon that's the problem although the jet hole on the 3Q carb is really tiny, not sure if even the finest fuse wire I have would fit.
As there's no de-compressor valve on this engine I bet its a a kick-back nightmare with a zip starter or drill? Looks like you have already done it though Max, so It's just a case of fitting a zip cup and starter then?

Cheers for the link and pics, "Start Ya Bastard..!!"