dimensions on used copper gasket from fazer 60042.5mm o/d32.5mm i/d3mm thick
dont know if this is any help? http://www.yamahamotorcyclespares.co.uk/spares/partImage.asp?GPN=Z8%5EK69%3B685655&uid=0&ShowAll=1 does not show the 400 fazer but the fzr400 is in the list,the gasket i looked up is for the 600 fazer