WT-657 Carb from Walbro. I can't find it anywhere except the Poulan website where it is described as standard equipment on the lastest version of the saw the engine came off. Bob_nj those are some great resource sites. I'm going to the field today, and will report on any changes to my cleaning and remounting efforts. Thanks to Cummings66 as well for taking the time to help out.

Roger