Chainsaw Repair

sorry, my quote button isnt working for some reason : 

"My chainsaw mufflers are slightly larger than the cylinder outlet of the exhaust.

The outlets of the mufflers are larger than stock. The cookie cutter race saws have outlets as big in area as the exhaust outlet of the cylinder."

Do you mean the cylinder outlet that the exhaust gasket attaches to? (the one i refer to as outside cylinder in my diagram).  Reason i am asking is there is quite a bit of difference in the opening inside the cylinder versus outside at the exhaust flange side...