This was helpful and I got the info on the shell plate tightening info I needed but my 650 must be screwed up. Something binds up in the priming system when indexing. I just got this thing and I hope I can make it work.
Do you need the alignment tool or you have to align the head and the primary feeder and everything will be OK. You also might have the rotating black pipe tightened too much you might have to loosen that a little bit.