really dont see any problems outta mine even throwing plenty of nitrous to it. the Gsxrs has same problem few years back with rod bearings. specially the 750 and some of 1000. of course it was due to wheelies and starving engines. i have seen all the blown engine threads and there have been (i am guessing) about 15-20 with problems reported. Thats not too bad considering how many 1000s of them Yamaha has sold. I know it sucks to those who had it done and had to wait for parts for weeks and months on backorder. Yamaha is kinda infamous for that. but as parts manager at Honda, Suz, Kaw, Yamaha, Ktm delaership i have seen all of them with parts backorder problem. KTM being worse. But yamaha will go to many lengths to fix problems. i had guy out of town riding cross country on Road star. he had bike serviced at his dealership before he left and they forgot to put oil in his transmission case. he made it 1000s of miles before the chain finally wore smooth out. The part was on backorder... he was stuck, but yamaha parts guys went and found a chain off one of there R&D bikes and sent it overnight with other parts FREE of charge. told the Guy even tho it wasnt there fault they would take care of it. i have never had any of other manufacturers do this for any of my customers. and im not saying that yamaha is King or anything like that as it doesnt always work like this for everyone. my hats off to those who have had problem and still find trust in them. i do recommend the warranty tho. best insurance that you can get.