Most times, all you have to do is re-adjust the carb though its whole range, then fine tune it again. Lots of saws come with adjustment limiters these days, so if you have them, pull those off first.
Cranking the screws in and out, while keeping it running, blows out the obstructions and, off you go.
Unfortunately some saws have no carb adjusting screws at all lately (some newer Stihl models too) so you are screwed pooch with those, and have to always buy parts.
That nose guard is something I would ditch as quick as breathing. If you can't face genuine danger and be prepared for it, you have no business operating a chainsaw in the first place.
There is nothing safe about a chainsaw. They cannot be made safe. The attempted safety features people come up with only get in the way.
The only real safety factor is you, and your educated terror.
Worse than a snake or a table saw............. never take your eyes away for a split second. Never work when you are anything less than your best.
yours Scott