Chainsaw Repair

Thanks for the reply's.

It is a manual decompression. Its an '06 357.

It has worked great until recently. I am leaning towards fuel issue. It started happening in the cut pretty consistently by the end of the day. I thought that a full tank of gas helped (leading me to think a leak in the fuel line), but I may have been imagining things.

Could a fuel issue cause this? Could a spark plug issue cause this? kinda stumped.
The carb boot area looks like it could use a good cleaning so I might start there. Maybe replace it. Then maybe fuel line and/or spark plug.