Jon, honestly, that�s what I thought when I first heard it. But theoretically, believe it or not, they 're the most skilled dealers on Yamaha here.
Following manual�s instructions, you�d see no oil through the window, while engine�s running. Following Top Yamaha�s (that�s the dealer) instructions to fill oil in these oil drinker engines, you should see a minimum oil level through the window (2-3 mm. level) while engine�s running. I�ve never seen oil in air filter box. That would be a sign of oil overfilling. Wich is the reason why there�s a contradiction between Yamaha�s manual and Yamaha official dealer? Who knows. In fact they didn�t seem to be very skilled adjusting TPS�s either. At the end I had to get TPS� perfect setting for me, trying different settings during three months. Fortunately we have the Gts Touring Society. Pablo.
