My bike has been doing the same thing that mreyna75's bike was doing http://www.KawiForums.com/forum/topic.asp?TOPIC_ID=51205. It would act like it was out of gas even though I knew it wasn't and run real sluggish, even in first gear. So I changed the spark plugs. Still will not respond. I have searched this sight for other threads that are possibly related, but nothing. Any advice will be greatly appreciated.