Well Sachs,the old fella may have claimed the Dolmar was the cats arse but that just goes to prove how being old doesn't automatically make you wise
On the other hand,I couldn't say about the big 'uns.Around here,you'd only see that on a mill.Most use a 50 and 60 cc combo.
I wouldn't touch a new stihl with the non adjustable jets.I wasn't aware it was both,I thought just the high speed was fixed.
My jred is a 2156.It's basically the same as a 357 husky except for colour and the fact that it has a straight top handle(as on all jreds)which is one reason I like them.
I've never felt it to be down on power in the least though it did require slight modification.As delivered,it had limiter caps and a catalytic muffler.I had heard they run very hot this way but figured I'd give it try anyway.Hot is an understatement.Of course,it has to for the catalyst to be effective.I ended up removing the caps to properly set the carb and modifying the muffler.Most people put a non catalyst muffler from an older model on it but I just opened mine up some and tried it,then gave it a little more until I felt it was running freely.The difference was reasonably dramatic.
Whenever anyone starts crying about DI I always think of what's happened in the chainsaw world-I'd take the DI anyday.
TMKIWI,I like my plastic jred but also have a few oldies as well including a '67 R16 Partner and a Partner 500 both of which I had out not long ago just to keep them going.
All of them are tuned correctly and use gas out of the same jug but, the modern 2156 smokes very little,the 500 a little more and the R16 a fair bit more.They have certainly improved with age until the epa got the newer ones
My plan is to continue to buy older ones and stock them away for future use-or wait for a new DI Jonsered