I think a lot of the Swedish muscle saws were popular logging back in day that most were used up along with the parts. I think that's why parts are almost impossible to find.
It was actually a decision by Electrolux Group AB not to support parts for the saws previous to the Jonsereds buyout and designed by the original company. Happened the same with the Husky 2100/2101. When you buy a big company, there is nothing usually in the deal that says you have to support product made up to that point. We've all seen in our lifetimes where a new company just drops parts support to everything before the buyout/merger. It sucks and it's bad PR, but common. Bean counters don't consider it a money maker to keep supplying older parts.
On the other hand, I've always admired companies that continue to support their customers with older products. I've even heard some reps say that as long as there is a demand, they will keep supplying old parts.
Kevin