Although.... I understand the '07 FZ1 has (or had) pretty much the same, identical altitude surging problem, and Yamaha was able to correct it.
2006 FZ1s had the problem, and Yamaha corrected it for '07.
I thought '06 FJRs also had the surging problem, but apparently not. Now this is even more bizarre. No change in sensors from '06 to '07, meaning the '06 also does not have the baro sensor and pressure regulator??
Hey '06 owners, you also have a different set of CO numbers, correct? I have 5,18,18,21, and my build date is 1/07.
If bikes are identical, all I can think of is emissions were further tightened and Yamaha changed the settings. The CO levels would give us an answer, no? Thx.
JC