cs590

Couldn't find a 620 (heck my 590 was a floor model) so am very aware that upgrading to its carb and/or coil may be worthwhile here, I'm going to do a "tinman style" porting job (if anyone's familiar w/ his recent 590 project) but have also read most of the old threads here and on OPE and feel...

Somehow my adjustment screw has gone missing. I am having a hard time finding a replacement for it. Can anyone point me in the right direction with a part number? Does the whole oiler need to be replaced? Thanks.

Alright everyone, lets talk about Echos. Im really liking the cs590, cs600p, and cs620p. Now what exactly are the difference between the 3? Carb? ignition timing? etc. Also if anyone has the horsepower ratings for them that would be great as i cant seem to find them. Im thinking about getting...