Dropped it off this morning... The service tech and tech say sounds like a bearing was starved for oil or defective bearing... They are digging into it and talking to Yamaha service Tech's. I did hear clattering like timing chain as well.. But he said there were no recalls or anything.. Do we'll see
All I can say is that noise is exactly what mine sounds like.The cyclical sound is exactly what you would expect from the cam chain,it is too slow to be crank or cam shaft related.in my case I did notice a bit of chatter, but for me... its now not doing it cold, but if I fire it up, let it warm up, and then literally drive to end of block and come back I notice the sound... and it seems to get worse and worse in running... to a certain point. If it were noise related to timing chain tensioner, I'd be ecstatic but I dont think mine is.
I would laugh in the face of a tech who told me "it's supposed to burn oil" I would fall to the ground and not listen to anything else they had to say, my 73 gran Torino with a 351c didn't burn oil in 2007 so I don't want to hear it! Also being a mechanic and working on hundreds of vehicles know better, the 91 honda civic doesn't eat oil from the factory, neither does the 02 Camry, or the 08 silverado. Even turbo cars don't eat oil! Nothing is supposed to eat oil these days. That's plain retarded lol.I dont know, I think is reasonable... the tech basically told me they've had 2 fz09's go through their dealership total... he didnt know what they were supposed to sound like. He looked up tsb's and recalls and found nothing for that vin... I told him it didnt always make that sound, but I'm no tech... and they are willing to tear into it.
Mystery sounds are always the worst things to try and solve... you may find 100 problems and fix them thinking its gonna fix your noise, and have it not fix your noise.
Knowing they've had issues with timing chain tensioner on this motor already, I'd hope they at least investigate down that road, but so far I'm not terribly unhappy with how this dealership has been dealing with this issue (from a car dealer perspective, I've had car dealers turn me away after proving one of my old cars was burning >3qts of oil in <3k mi, saying some cars burn more oil than others)
and thank god I have my ducati to ride while this one is in the shop =) not totally bikeless in this fantastic weather. (ironic... an italian bike appearing to be more reliable than a japanese one =)