There is a lot of joy in working on correctly engineered and designed machines. I hate the crap that is produced these days that you can't fix. Hence the SB is a great machine and after 40 years stil comes apart and goes back beautifully
It only took 3 beers to reassemble. However I got the blade back in and adjusted but then the chains wouldn't fit, however if you look at the orginal photo's they didn't go over the tension roller which I later found out was adjustable. So wound up the roller then put the chains on then readjusted it, then reset the chain tension
To fit the engine I had to unbolt the lower handle bar assembly but it fitted perfectly and all bolted down until I saw the bearing shaft key lying on the ground. Off it all came again and rebolted everything again
Will fire it up this afternoon