So bought property that had a stihl leaf blower that didn't run and sat outside for 2 years that I lived there. So I replaced air filter, fuel filter, whole carburetor (aftermarket). It all came together as a kit on ebay. The only thing i didnt use was sparkplug that came with it because it was the wrong one. Boom it started right up easily. But once I pull the trigger it only runs full throttle for a second and starts bogging down. The only way I can keep it running is half throttle and I still have to feather the throttle after running a while or it will die out. Even at half throttle is sounds like it's either not getting enough gas or air. The old sparkplug was black so I figured even though it ran with the old one I threw a new one in there. Still does the same thing. And after running it a while at half throttle I have to be careful not to let throttle out. I have to keep it half throttled because if I let it out after running it it will stall out and I won't be able to start it for a while.. or if it doesn't stall out it won't throttle back up at all then it will just fall on its face as soon as I pull trigger. Thoughts?