Chainsaw Repair

Saws of this era had poor filtration systems with minimal surface area  (stihl, jred, husky) and lack of centrifugal separation.Here on the west coast It was common place to modify the Husky /jred of that era with aftermarket filtration systems that added surface area and increased the cleaning interval for logging operations.  The saw in your avatar as well as many commercially modified fire vent saws used aftermarket filter systems for this reason.