Selling Honda Wave & Ford Ranger - Just Over Year Old

We are selling our red Honda Wave bike, and silver Ford Ranger. Both vehicles were bought just under two years ago from new. I have already posted an ad for the bike here on TV under Commercial, but would appreciated tips from those here who have sold vehicles before, as to how best to go about it.

Neither of us have sold vehicles before here, so guidance would be really appreciated. Thought we would put ad in Carrefour but wonder where else would be effective. And what procedure paperwork wise I wonder?

We bought the bike from the Honda dealer by the traffic lights, and the Ranger from the Ford dealer on Sukhumvit.

Thanks to all.