If you have fuel and spark; all that is left is timing. Seems like I had a
no-start-after-stall problem on our 85 that turned out to be a stuck advance
mechanism. I also had many different problems with holes/tears in the vacuum
lines and also a sticking idle bypass valve. You really need to take each
hose off and physically inspect it. Especially the rubber "I"s and "T"s.
I found an inductive timing light invaluable in checking for the presence of
spark. Just clap on and crank.
Ken Lewis
http://neksiwel.20m.com/