Chainsaw Repair

when you put carb cleaner in it you washed the oil off the cylinder walls and increased the coefficient of friction. causing it to turn over harder. doing this repeatedly will also cause the rings and cylinder to wear because of the increased friction/heat. doing it once shouldn't have much impact. doing it repeatedly could.
pull the muffler and look at the piston/cylinder for evidence of scoring or overheating.
turning over hard could also be due to worn bearings.
one thing at a time though.
QUIT using carb cleaner in the engine and prime it with mix ONLY. if the p/c looks okay. pull the plug and pour some mix into the cylinder and work it some to get the oil back on the walls.
if you just cleaned the carb 1. how did you clean the carb? 2. did you put the gaskets and diaphragms back in the proper configuration? 3. you may need a carb kit.

As the others have said go ahead and check the p/c for problems.  You stated that you cleaned the fuel lines...were they still good?  Most of the time they are rotten on these....When you say fighting was it hard to pull over and then very rough & smokey once it was running?  Sounds like the needle is stuck open and the saw is extremely flooded....A carb cleaning/kit should fix it. ....make sure the fuel lines are good and not stiff/crumbly as they will clog a carb fast let alone break.

Sure you dont have a stuck ring? All the carb work in the world wont matter if it is.

replaced the carb, primer and fuel lines and runs like a champ, thanks for the help i can now go ice fishing with the remainder of the weekend

glad you got it running but i hafta tell ya. when the carb cleaner says its for two strokes it is just saying you can use it to CLEAN two stroke carbs, NOT use it as a starting fluid. hope you get lots of fish. carry on.