Thanks Grumpy and DJ, have checked all of the above, all ok except did notice that the gasket between the carby and the whipper snipper was torn at one point. I thought that i'd adjust the hi/lo carby screws, this got it running in both the partial choke and in the run position, it keeps running if i press the throttle down as soon as i let it go, it dies. I tinkered with the screws but no matter what i did it kept dying as i released the throttle.
