I have a Wild Thing blower that started acting bad about 2 months ago. From the start,2 summers ago, to get it to run at full speed I had to run it at half choke. Now it only runs at full choke and takes about 10 minutes to warm up and run smooth. I have changed the plug, cleaned the air filter, took apart the carb and cleaned it and put fresh gas in it. Since March I have had FP and Mobil Syn 2 cycle oil in the fuel . I also have a 2 stroke trimmer that I run the same fuel in and have no problems with. I don`t know a lot about 2 stroke engines so can you guys offer any ideas