Just trying to get a stock av7 up and running, I had all 3 compression(150psi) spark and fuel + a new b5hs plus.. but it would not start up/fire or anything just turn...it had run about 3-months prior so the timing being off didn't make sense to me.
I closed down the spark plug gap because it seemed like the spark was getting blown out, and I got it to fire. I havent gone back to that engine since so it hasn't started yet...but maybe take a look at that..That plug is set with >.020" gap.