I'm pretty much ready to throw in the towel on it. If the timing is off by a tooth will it not start at all? I thought it would start and run poorly or at least make some smoke or something.
i ran into a similar problem. It would choke or 'try' to start. Finally I just dropped my tools and walked away.
I pulled the flywheel and even though I was getting spark, the cam wasn't opening and closing the points. Its like it went flat.
Im going to pull engine apart and see if I can fix. I milled the head, new springs...yadda yadda.
Hope this helps. It stinks to waste hours on something that doesn't want to budge. :no: