Well, 2 years of running the piss out of my quad and I think I finally hurt it. It still runs great but sounds like a bearing going out in the bottom end some where. It's pretty noisy. Piull in the clutch and it is still there so that rules out any bearings in the trans. I assume it could be a idler, water pump, or oil pump type bearing but more likely a crank bearing.
Not a rod knock, sounds like a bad roller bearing, continueous growl noise.
I'll let you know what I find. Not that I want anyone else to have any issue but if anyone else has had bottom end noise and fixed it, let me know because I'm sure whatever it is has happened to others at some time. It may have been those extended speed runs to see the top speed on the sand and holding it pined for longer than I should have to get that extra MPH.
I completely put this on me and do not blame it on it being a KFX. I really do run the holy crap out of this thing and have several hundred hours on it without any problems. It has had the big three on it for the entire time and just a few weeks ago put stage two cams in it.
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