Originally Posted by azkiwi
Spies wanted the bike set up really hard, apparently harder than the Yamaha wanted to be set - broken shock mount as a result. So you can interpret that as the bike not being adapted to him, or vice versa.
At Valencia, Tsuji (Yamaha tech boss) said it was a bolt that stripped. QA issue. At Indy, his bike dropped a valve from overheating, and after that, they altered the fueling to inject more fuel at certain important points to help cool the valves.