The pic of the right side, the clutch cover. Someone, not me, has put a plate over where the PS knob and button would have been. They were usually , eventually done away with, discarded whatever. Then the holes covered up.
These saws are not my cup of tea, so to speak. They aren't bad to work on, I just never took a shine to them. The more common, and later 306 also. Basically the same saw. Not sure if piston rings etc. for 306 will work in the 202 or not? I'm gonna say yes, unless someone else can chime in other wise.
Both are 59cc I believe.
Gregg,