Dropped motorcycle - engine sputters then stops. Later on starts, but stops again?

I dropped my 2000 Honda Nighthawk CB750 on its right, picked it up in
It was riding fine right after, then about 10 minutes later it sputtered and stopped while riding. Looked like the battery and starter motor were fine, engine just couldn't turn over.

About 10 minutes later it started, and I rode for a couple miles.

A few hours later I rode it again, but it only lasted about 2 miles before stopping again. I waited a few hours after that it started again.

Does anybody have suggestions? Thanks in advance.

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