I'm guessing you can't run a battery eliminator (capacitor in place of a battery) on the XS400 as it has a field controlled generator?

Maybe if the generator core holds enough magnetism to let it self generate like a dynamo, IE not need a battery to get the generator fired up? I remember mine not running with a knackered battery tho.

If anyone has experience of this I'd be interested to know if the 400 will run batteryless.

sorry, can't be run without a battery. It needs something like 1 or 2 amps to power the field coil.

having said that using a banshee stator you can go batterless

http://www.xs400.com/forum/showthread.php?t=4648

Thanks for that I sort of guessed it wasn't going to happen. Interesting the Banshee generator fitts the 400 as well as the 650!