Originally Posted by Albie
[On] my 2007 EXC I had to cut the internal plumbing in the exhaust, remove the EPA plumbing, seriously rejet the bike, and re-gear the bike 2 down in the front and 5 up on the back. My 2008 690 was very much in line EPA wise. So all this talk about EPA exceptions is a bunch of bullshit.
You might be right Albie. I'm just guessing. The high gearing and lean jetting on the early EXC models were definitely done for the EPA. And I've never thought any kind of exception applied to the 690 or other models besides the EXC series. And Grreatdog makes a good point about the difference in culture. Maybe KTM met the letter of the law with the crude shortcuts of the gearing and jetting. Unless somebody from the EPA or KTM wants to enlighten us, we'll never know the details.