I can't describe it any other way other than to call it a 'valve whistling'?
Here is how I can induce it, but it always happens around these same conditions lately:
2nd-3rd Gear, higher rpms, kinda like when your towards the end of a straight and you don't really want to shift again, since your almost to the next corner. I'm not hitting the rev limiter, but I am pretty far up in the rpm range when it happens.
Like a 'ssshhhwwwiieesssss'
Any idea if I should be concerned, or could it just be another version of those noisy yz valves?
No other wierd noises just putt-N-around though? Power is good, shifting, clutch, etc, everything else is working pretty darn good!
Edited by NewMexican, September 13, 2011 - 04:11 PM.
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