spotted this
not sure if it will help anyone.......
http://www.ebay.co.uk/itm/230918451728
Why bother paying? If it's not been done Yamaha are still changing them for free!
Local dealer said not a known problem.
Finnish importer's technical assistance manager also said not a known problem, FZ-6 issues not related even though basically the same structure and the technical service bulletin numbers didn't relate to anything in the databases.
Finnish importer's Yamaha motorcycle product family line manager also said the same and relayed some bullshit e-mail from a Yamaha Europe representative (handily had censored all critical info, like names and e-mail addresses).
After enough of doing that, I just bought the f*cking new nut of eBay. Wasn't really expecting much for 14 year-old bike, but I do know now that I will never ever be buying a new Yamaha or spare parts from the local importer.