Okay, so I used the strobe and I have good and bad news.
Good news - I can hold a steady 1,000-1,200 idle, and the readings look very good at the F line. Not bouncing all over the place.
Bad news - I can't hold a steady 2,500 idle. I can walk it up to 2,000 with the idle screw, but then it doesn't want to go higher. If I rev the engine a little, it flies to 5,000. I can walk it back down to ~3,500 with the idle screw, but any lower and it quickly falls back to ~1,200. I assume this is related to the advancer springs being shortened.
Eventually I let it sit at 3,500 rpm, just so I could get a timing reading with the strobe. The marks lined up for both sides directly between the two full advanced marks (far to the right of the F marks). I took it for a test ride and the throttle is now kind of snatchy. It idles more evenly and doesn't feel like it will stall when warm. However, it has lost power under 3,000 rpm, and then it suddenly jolts forward and quickly accelerates north of 3,000 rpm.
So if I understand correctly, my timing is good, but my advancer is bad? Is there a good aftermarket advancer sold anywhere?
