[augiedoggie]

I don't own that bike. My advice is derived from many other brands and models for many years of riding, racing and motor building for all types of bikes. My advice is perform compression and cylinder leakage tests during your normal service intervals and try not to worry. Your engine will tell you when it becomes tired or sick when one or the other changes or she starts using excessive amounts of motor oil or develops abnormal noises or begins to smoke or lose power. I was hoping other owners would chime in with their results and opinions as my suggestions are more generic in nature. I have heard from 350 and other 510 and 520 and 530 owners riding 500 plus hours with little trouble