This may have been touched on here in the past but I haven't seen it.
I have a nice Saito .45 , the one with the elbow joint intake on the carb.
Picked it up new with no box for a song and its a great engine like all my other Saitos. However it doesn't give me the amazing idle like the rest, best it can do reliable is about 2500/2600. From what I have been able to gather this isn't particular to my engine as I have read some old reviews and they encountered the same thing.
Just wanted to be sure it isn't me, it pulls my 4Star54 around really well, very reliable and powerful for an engine its size.
Unfortunately I had been using my (purchased new, just broke in) Saito 62 but it keeps dead sticking for unknown reasons(I suspect a main bearing not seated).