Just read on the FJROwners website that Yamaha has acknowledged the problem of 17.0 readings and is looking into a fix. They say all affected bikes will be corrected.
https://www.fjrowners.ws/phpbb2/viewtopic.php?t=1214&start=30
https://www.fjrowners.ws/phpbb2/viewtopic.php?t=1214&start=30