I have a 2006 ZX6R i have a problem. just finished tuned up by a mechanic, changed oil, spark plugs, balance the carbs. my problem is it is ok with 1st gear and second gear but when I go to 3rd and speed is 80kph the engine will go like dead but when i return the throttle a fraction back, it goes back to normal. it cannot go over 80kph and rpm will not go over 6000 on 3rd gear and up. hope to have some help.