Hi Sarvajit, Pardon my limited knowledge about engine tech specs, but my bike's done around 2700 and I'm not really sure if there is a "loose marbles" kind of sound produced from my engine as well. Now if I have to go ask a Yamaha tech sure he's Never gonna understand in his Wildest of dreams anything known as "Tappets". So, considering the same, would you please give me a general 'lingo' in which I can conversate with the yamatech and make him understand as to what is it i'm asking him to look for?







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