I think I have a stuck float valve. So it looks like I have to remove the whole carb to get the bowl off - right? This will be my first time taking one apart, so I'd appreciate if you all could point me in the right direction. Do you take the gas tank off, or can you get the carb out without doing this. Also, it looks like I'll need an allen wrench that isn't as long as most, particularly on the right side - is that right? Any help appreciated.