My riding friend Angel, who has a Carbon Fiber ZZR 1100 C model had a very lucky escape. He recently did a little work on his bike and when he was putting the airbox back he noticed he was 1 screw short. He had a little look but could not find it. Oh well he thought, not a problem.
Well, he was having trouble starting the bike and he push started it. When the engine started the was a sound reminiscent of a valve issue. A loud tapping noise. He initially thought it may have been the cam chain tensioner. He checked that and all seemed ok. Concerned that it it was indeed a valve issue he RODE IT to a mechanics. There they started to strip it to find the issue. This is what they found!