Hello , since I got the bike the chain makes clunking noise over even the smallest bumps. When I have an opened throttle sometimes it doesn't ( guess cause the chain is tighten when you open the throttle) but when for example git a pump when having closed throttle or when I pressing the clutch in it clunks. I tried everything even replace the chain and sprockets. The Kawasaki dealer where I went for a check drived it and said it's normal for Kawasaki z to make such a clucking noise over bumps. But it's too loud to be normal. I tried to adjust the chain at different positions:2mm-3mm and I'm in stock sprockets 16-42 but again the same. Does yours Z does the same ?is it really normal to be so loud ?