Yamaha FZ-09 Forum banner

header leak

  1. Leak From Header?

    Yamaha FZ-09 Common Problems/Issues
    Hey everyone, so I bought a brand new 2017 fz-09 in December of 2017 with 13 miles on it. At about 4k miles I got the ecu flashed from vcyclenut for a Toce exhaust tune and then installed a Toce exhaust, no other performance mods. 2 days ago while sitting in traffic I noticed white smoke that...