Try our new info resource - "Aladdin's Cave" (Main menu)Just added a separate link to Ash's Dropbox thread (shortcut)
Came across this on fleabay, https://www.ebay.co.uk/itm/Honda-CB400F-CB400-4-Four-1975-408cc-UK-bike/293065126017?_trkparms=aid%3D111001%26algo%3DREC.SEED%26ao%3D1%26asc%3D20131017132637%26meid%3D9578ff8f418e4e3eaa46c7796cd178bd%26pid%3D100033%26rk%3D7%26rkt%3D8%26sd%3D223498392673%26itm%3D293065126017&_trksid=p2045573.c100033.m2042He also has an original exhaust in the loft.