Hey i just had the carbs sync on my bike. But after starting her she fell over and now sounds as if one of the cylinders are dead. I removed all the plugs and cleaned them and tested them for spark and they are all ok. And all the plug leads have spark. A friend told me he thinks it may be that one of carbs slides may be damage. So if any body can help me out it will be great thanks. Its a gsxr 400 gk76