Fuel level sensor mechanism?

I have not taken the fuel pump out, so a Q for those who have: what sort of mechanism does the fuel level sensor of 1050 have? A floating styrofoam ball in a pipe like on some older Triumphs or a hinged floater of some sort?

It seems mine is stuck. I very much enjoyed my hike (in full leathers) down the deserted back roads after I ran her dry. ;D Gladly after some time a kid on a moped rode past and he was kind enough to sell me a Coke bottle worth of fuel.