Had good weekend this weekend till beachsleds machine tanked. ran good when we first unloaded off truck. about half hour into riding couldn't keep running and egt's wouldn't go over 750. dropped needles and it cleaned up a bit egt went back up to 850-900 still low but better. still couldn't keep running at idle though kept flooding itself. near end of day unit quit. finally got it going about 15 min later and 5 qauzillion pulls of the rope. started to go clutch had just locked up and moved about 5 ft egt's at abot 500 and sled quit and i went onto the hood nearly. tried to pull over no go. I can rock the engine back and forth about 1" to 2" but wont make full revolution. looked inside tops of pistons are washed clean zero carbon. any ideas would be great. tops of pistons are even still wet it looks like. 1 good thing is at least we have all summer to fix. It's a 98 670 twuin jaws pipes, k&n pods, and holtzman atac.