https://www.youtube.com/watch?v=ngPXszKwE_E here's another sample. Went to kawasaki and yamaha dealer, they both thought the xt engines were quicker then this one is right now, yamaha dealer thought it might be what you said above! the kawasaki dealer thought it might be the distribution chain or something with the clutch. What do you think that's more likely? I have ordered the gaskets etc for the clutch side so I will that that no matter what! Hope to hear from you, Bart!