Last time I had it out it was hard starting, now I know why. The aluminum tape I used is gone. I stopped using the tape a couple of months ago when I found how easy it easy to soldier the hole closed. I decided to fix the choke plate using soldier this time, it turns out it's much easier to soldier a hole closed than it is to soldier the edge of a choke plate. Here's what works:
Hold the plate with pliers and soldier the choke plate with it laying on something that soldier won't stick to. I used an aluminum plate held in a vice, this lets the soldier flow on both sides of the choke plate. After the soldier is cooled file the soldier off, then use the file to refinish the choke plate into a round disc. I made the mistake of hammering the plate to flatten the soldier at first, this stretched the brass plate out of round, so don't hammer it. Even though the edge soldiering is much harder to do than soldiering a hole it still only takes 15 minutes to do, a hole takes about 30 seconds, so it's easy.