Chainsaw Repair

Seals are relatively easy to change on that saw .As far as tuning short of reworking (porting )the best I can say is gut the muffler .No baffle cage ,no deflecters ,no screen .Retune the saw so it "4 cycles " and get with it .

That's a good ole saw .Probabley the last of the heavy framed made which include the 028,042 ,048 plus three 038 .038 av ,038 super and 038 mag which became the 380 .