I picked up an older CS-302 as a project, figuring I would put it through some light use clearing out smaller trees and limbs in my overgrown backyard. The previous owner used it but once or twice a year and it had been sitting for some time, it didn't start or run when I first got it. It's got an Oregon bar and chain. Judging from the serial number and lack of a brake it must be one of the mid-70s models. I replaced some fuel lines and the filters, and the rubber and screen in the carb, adjusted all gaps, installed a new plug. It cuts great and starts every time (I've used it to fell several small trees and also a couple stumps) - but strangely it wants to either die after idling a few seconds, or if the trigger is held slightly it runs at full throttle. Seems it's all or nothing - not exactly a safe use scenario. Perhaps I didn't clean the jets out thoroughly enough. It will be a few days before I pull it apart again, so I figured I'd post some images and see what other folks had to say about it.