I bought this bike almost a month ago. It was brand new off the show room floor. I went to go ride it and it has a really bad misfire around 1/4 throttle. Called Ga motorsports and told them about the problem. Took it in last week and had them look at it. Got it back and I had yesterday off and went to test it and rode it up and down the street and it still did the same thing. I looked around the bike and noticed that the tps wasn't hooked up. Took it in today and they said the fixed it now they are going to have to charge me to look at it and that they don't think anything is wrong it sounded fine reving up. I rode it and showed them runs fine when you get on it and idling but if you cruse or get to a speed with no load it starts missing. They told me that you can't cruse dirt bikes. My 05 and my buddies 09 kxf run great no problems at crusing or anything. I'm going on vacation in a a little over a week and need this bike running right before then. The carb has been cleaned and checked by the dealership the first time I took it in. Is there anything that could be wrong? The jetting is stock and the hot start opens and closes right .I live in central cali.