My 2002 Honda metro scooter is leaking gas from around the throttle position sensor. I've taken it off and cleaned around it, anyone ideas?

My 2002 Honda metro scooter is leaking gas from around the throttle position sensor. I've taken it off and cleaned around it, anyone ideas?

Replace it.

Like, seals, gaskets, crush washers, or o-rings--which you could check. Maybe the sensor's leaking through itself--which you could check. What kinda seal does the Honda parts fiche show? See dude.

A $.25 hose gasket should cure things up.
Need a screwdriver?

If the TPS has an o-ring or gasket, replace the o-ring or gasket.