Keywords: Flat.six.honda.valkyrie.arp.750pix.jpg The Flat-6 engine of the Honda Valkyrie motorcycle seen at Aust Services Bristol England The radiator is on the left of the picture <br> Taken by Adrian Pingstone in October 2004 and released to the public domain en wikipedia 2004-10-15 Arpingstone wikipedia en Arpingstone original upload log page en wikipedia Flat six honda valkyrie arp 750pix jpg 2004-10-15 13 35 Arpingstone 750×561×8 149106 bytes <nowiki>Flat-6 engine on a Honda Valkyrie motorcycle</nowiki> Honda motorcycle engines Taken with Olympus C-750UZ Honda Valkyrie Flat-6 motorcycle engines |