288 xp lite having problems?

[lumberjack48]

  I've had this problem, the piece between the carb and the cylinder head has a crack in it, i don't know how to spell it, its called the condream, on a Stihl its the rubber boot, it has a clamp on each side,  i've had them come louse, or crack.
On a Husky it was a solid piece of hard fiber, between the carb and the head, it took me a long time to find the problem.
Just a guess

[tmroper]

I went out and cut firewood this weekend and the saw did pretty good.  It cranked well.  idled well, and cut small stuff extremely well but when I cut a large daimeter pine it really slowed the rpm's to the point of almost not cutting. 

Anyone have any suggestions for what might be going on?

[rickywashere]

how's the compression on the saw  sounds as if its warming up and loosing power ... a 288 should rip through pine like cutting water with a sharp chain

[tmroper]

I don't have a compression gauge that will fit the saw so I am going to have to pick one up.  I did the quick test and held onto the pull cord handle and the saw did not drop.  I also have pulled the muffler and everything looks good and shiny.  Everything is newly rebuilt on this saw from the shop even though that doesn't mean everything.