I found that my suzuki fa50 would bog down and hardly run at all when the air filter was not properly installed. If you do not have an air filter, try partly covering the carb with either your hand or a plastic cup lid with a small hole cut in it. Chances are it is not getting enough fuel compared to the amount of air that its getting. I had a similar problem with my FZ50. The only thing that fixed it was changing the needle on the slide to give it more fuel and buying a new air filter housing....
+
+
before you try to replace it try to clean it first... possible problem of your fa50 is the fuel needle/supply... try to adjust it.. thanks
I found that my suzuki fa50 would bog down and hardly run at all when the air filter was not properly installed. If you do not have an air filter, try partly covering the carb with either your hand or a plastic cup lid with a small hole cut in it. Chances are it is not getting enough fuel compared to the amount of air that its getting. I had a similar problem with my FZ50. The only thing that fixed it was changing the needle on the slide to give it more fuel and buying a new air filter housing....