I have recently bought a Silverwing, it had 12,202 miles on it and was adult riden by the previous owner. I keep hearing the rockers going off,,, nit bad ,, but I can hear it. The fluid is fine as thats the first thing I do when I buy a bike. I was told its normal for this bike to do this and I havent any worries about it blowing up or locking on me... Is this true???????