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I read something interesting in the tuning notes over on the Jenks site. On page 4 of that PDF, he states Differing float levels cause an imbalance which may be perceived as vibration. Worth a check at least.



Thats pretty much what i thought. I guess they do this under the assumption that the wheel is perfect and that the valve is the off-setting factor to the wheel's balance and the tires may somehow be made so theres a slight weight difference to make up for the valve by making the dot area sightly ligther or the opposite side slightly heavier to balance out the valve stem. Because alloys, which being tubless this tire is obviously designed for, have metal stems which would throw the wheel out of balance all else being equal.

As to the jenks thing, i read that 3 times in the last day or so out of desperation ! I have already checked the floats a couple times 2 different ways, so i don't think thats it. But i AM leaning towards a engine harmonic scenario whether caused by fuel or something else. I've gotten so desperate i've posted at harley, honda, kawi and suzuki forums !