As above re hard cash before ant test rides.
I also ask for proof of ID etc a driving license with their photo. I've also been known to ask them if they mind me taking a picture of them on my mobile if I've any doubts - they won't mind if they're honest!!
Always use the photo ID as backup when filling out the V5.
If they want a receipt then do 2 of them which you both sign including all the bike details, date and the all important "sold as seen".
Just my 2p which when added to the above advice means I've never been stung.
Good luck.
I also ask for proof of ID etc a driving license with their photo. I've also been known to ask them if they mind me taking a picture of them on my mobile if I've any doubts - they won't mind if they're honest!!
Always use the photo ID as backup when filling out the V5.
If they want a receipt then do 2 of them which you both sign including all the bike details, date and the all important "sold as seen".
Just my 2p which when added to the above advice means I've never been stung.
Good luck.
Those are my principles...if you don't like them I have others.