Clean out fuel tank?

[rlitman]

For things like this, I keep a set of "cotton swap forceps" in the toolbox.
Mine are about a foot long, and are perfect to pinch a scrap of rag, and wipe way down where even the smallest hands can't reach.
It's just so much easier to do this, than the take the tank off.

Now if I were going to take the tank off, I'd blow it out with air, and if that didn't help, I would probably swish some denatured alcohol in there, dump it out, and try the air again.