Chainsaw Repair

Look at the MN/SN decal.  There should be a Type #.  IIRC, it precedes the SN.  For example, 1-12234556 would be a Type-1. 

The 2775 Type-1 and 2775 Type-2 both have the normal plated bore and bare piston.  Type-3 and Type-4 are the bare bore, plated piston versions.  Don't think they made many 2775 and 2900 Type-3 and Type-4 saws. 

My guess is that Poulan built those versions to use up the excess bare bore/plated piston sets left over from the Craftsman saw production runs.  I've seen far more bare bore Craftsman 46cc saws than their Poulan branded brothers.

Only reason why I knew the bare bore/plated piston versions exist is because I've researched this series pretty thoroughly.  I put the 46cc engines into the Husky 36-141 chassis, and needed to figure out what would be good donors (and what new/NOS parts on ebay to grab) for my PoulVarnas...