Husqvarna chainsaw trouble! Can you abet? I have be running a Husqvarna 345 chainsaw and for some reason...

I have be running a Husqvarna 345 chainsaw and for some reason it have been acting up. It is hitting a plateau on it's speed so when I try to cut - it's bogging down and stopping. I replaced the manacle. Put in brand clean gas. Cleaned the filter (gas and carb). I don't know what else I can do. It just won't get a move on. When I give it a burst of fuel beside the primer button it jumps up to prime adjectives speed, only to drop rear down and stop cutting. Any guidance?
What's wrong beside my furnace?
Sounds to me that the exhaust port peak is clogged with carbon.
Remove muffler and verbs exhaust port and screen.
This happen when gas mixture is too rich.
Air filter could also be clogged.

Why have our economically pump quit?
sounds resembling a fuel delivery problem, short it actually anyone here in front of me i would enjoy to say you should any take it for servicing or do it yourself.

remove the carb(s) and disassemble. it may be something as simple as a broken spring or slider. it may be more.
Why have our brand unsullied electric hose down...
Answers:    Before you do anything drastic, like taking the carb bad, try turning the high speed hypodermic out about a quarter turn.
You could also check the spark arrester, which is located inside the muffler. Once you remove the muffler, you can disassemble it and you will find rather screen surrounded by there. That's the spark arrester. Clean it and put the muffler posterior together. Before you put the muffler back on, check and see if nearby is any carbon build up around the exhaust port. It there is watchfully scrape it past its sell-by date and don't allow it to fall inside the engine. Then replace the muffler.
If that doesn't work you will call for the carb thoroughly cleaned and it should be rebuilt at indistinguishable time. That's best left to a professional.