Ok the first thing you want to do is pull the plug and make sure your getting spark ! if your getting spark pull the carbs and clean them . make sure you take the jets out of the carbs and clean them well, after sitting for 2 years there is a good chance they are all plugged up ! if you have a repaire manual it tells how to test the ingnition source, but it sounds like you already did that when you tested the stator ? does the fly wheel still have good magnetic pull ? does it still have the T.O.R.S system on it ?