Well, since I have spent quite some time on French roads every summer for last 6 years ( I think count is well over 35000 km in France), here is few tips.
1. Fuel stations in villages and supermarkets closing at 6-7 PM. There is card reader at stations nrmally, but very often it does not accept foreign credit cards. So, till 6 PM you are safe anyway. After 6-7 if you are desperate - wait at fuel station for somebody local to come to fill up and nicely offer him cash to fill you up with his card. Best working if local person are good looking girl

2. Fuel stops on toll road is 24/7 and cashier there to take your cash or credit card.
3. No cameras and no plod - well guys, you should look better

Quite a few speed cameras on the way and around place, but with UK numberplate you are safe except if you get stopped by plice for other reason and during check-up found to have outstanding fines to your numberplate. If you flashed - they keep it in database for some time as "address unknown" offender.
Check for radars here:
http://www.radarsfixes.com/Carte.asp?a= ... arte.y=160
4. If you see french police - just slow down until they get bored and will shoot off. Never race with them.
5. In France it is obligatory to post warning sign few km before speed camera. But if you overtaking truck you can miss it etc.
6. With new air filter and 19 liter tank I never sweated about fuel during last 2 trips - 3700 km each. 200 km to reserve and 45+ km on reserve (reserve - easy on throttle).
7. Non-french car drivers often do not let bikes go between the lanes. French usually move to let you go.
8. Do not make too much appearance to a plod around Le Mans circuit itself. Lately they got bad habit of checking exhaust noise levels, thou usually they ignoring foreign numberplates.
9. Toll roads is not for touring, it is for moving object from point A to B in most boring manner. Get off toll roads if you want to tour France
10. Have fun!

1664 and Kronberg is piss of a beer compared to Belgian, but still - OK after day of riding
