Going to read between lines here and guess u actually have a nice fat blue spark at the plug?Two strokes(yours) need two kinds of compression.one's tested at the spark plug hole.test your's buy a tester they are not dear,£10-20.The second compression needed is crankcase compression ,more dificult to test.Buy a can of easystart from a garage and spray a SMALL amount into the airbox as you try to start it.DONT SPRAY TOO MUCH!!If the engine coughs or even starts then the chances are good for the engine internals to be good,and the fault lies with your carb.If no cough or start,then you have no primary or secondary compression or ignition system fault.
caine, August 2008
