Take the limiters off the high and low jets. They are easy to get off with a screw driver and a pic or small screw driver. I couldnt get mune to even stay running at idle in the winter. Had to richen up the low screw quite a bit. I do have it slightly muffler modded though. It runs much better with way better throttle response after removing the limiters
In terms of how the saw runs.. do you let it sit and idle after starting it up ? Start it, let it idle for 30 sec to 1 min before pressing any throttle. It should adjust itself/tune itself to the environment and run right.
OKAY, I respectfully disagree with you, I had a new 435 that after the first tank of gas, it would not start? It was so bad I gave the fuc#ing away it was peace of shit, I really did I would never buy a Husqvarna again, never!😠