Chainsaws

I have a T435 Husqvarna chainsaw , about 1 gallon non-ethanol premium through it with Husky premium 2 stroke cycle oil (50%1) . It now runs lean and bogs on the top end ( full throttle ) runs fine on the bottom . The top needle is locked so it cannot be richened ( wont turn out more ) I am afraid to run it now , the H needle is blocked by the factory aluminum carb body . What to do here guys ?????? I am stumped with this new saw .