Chainsaw Repair

Finished up the poulan 3450 type 3 60cc yesterday. Not done though. Wouldnt pop. 

Before build. Had looked through exhaust with muffler etc all off. Looked like new still. Looked through plug hole all the same.  So had never pulled the cylinder.

Check spark etc all good with spark analyzer. Just by pull test psi all felt good. Checked psi with tester not good. 90psi.
First thought stuck ring. Yep on back side by ring pin one side was stuck for about 1/2-3/4 inch.

So pulled down.
Waiting on base gasket for this one that is on order. Due to I ran out on 380 when I used the dirko ht for its base gasket.