Have you tried a known good spark plug, They occasionally will spark without compression, but die under compression.
You will find plenty for that machine in the way of carby parts, down at Tiny's green shed, At the tip on Mugga Lane. I went past today, and found a few machine with levers you could use. There not all on blowers, that engine (and others with the same carby set-up) were also used on a few different trimmers, etc.
If you like, i could arrange to meet up at lunch some time next week, and help you source parts (should be able to get all you need for $10)
How is the muffler, is it completely clear of blockages?
