[2LZ]

Dent in tank..... Possible explanation if it doesn't look like an impact.

A buddy of mine bought the brand new, smaller displacement Vulcan. The one that look like the fat tired cruiser. Classic, I believe?
He rode it around the first day and stored it in his garage. He got up the next day, walked out the the bike and there was a big dent in the top of the tank! 8O
He looked up to see if anything fell out of the rafters...all looked good. Nothing on the floor. He was perplexed. No scars or dings from impact either. Obviously, he was heartbroke.

He rode it over to Kawasaki to see how much a new tank was going to be. He wanted it fixed right away. The counterperson came out and looked at it. "Oh....that's a recall. We'll order you a tank. When the engine and tank cool after riding, it contracts and there's a faulty vent doesn't let air in and it collapses the tank."

Pretty odd, huh? 8O