Mine had to be cranked 3 times to get it started after my last fuel up yesterday. It did that the first day or two of ownership. When it's cold it starts immediately. I have had other bikes that didn't restart very well when hot too. The GSX-r1000 and the Triumph Street Triple r were 2 that had to crank a bit to restart when hot.
Speaking of fuel, I have a story. I also own a CB300f. I have 2100 miles on it and almost from day one I was getting this weird sound from the engine...like flapping. It would happen often when I would accelerate, then release (close) the throttle. It sounded like when you were a kid and put cards in the spokes of your bicycle, at least to my ears. It sounded nothing like pinging or knocking. Anyway I took a 200-mile ride 2 days ago and when I started out, the flapping sound was bad, in all gears at all rpms...flap, flap, flap. It was embarrassing to pull up next to someone with the bike making that sound. I was down to my last bar of fuel so I decided to just put premium gas in the tank since it's cheap now and just to see if it would improve the engine noise. I had been using unleaded regular from Murphys which is the gas station associated with Walmart. Anyway I put 3 gal or so of Shell V-Power or whatever their premium gas is called and IMMEDIATELY after that the flapping disappeared. It was gone just riding out of the service station and it's stayed gone for the next 200 miles. Whether it was detonation or something else, I can't say, but clearly the premium gas cured the problem. I couldn't elicit a single flap from that engine. Needless to say I refilled with more premium. No more regular unleaded for me...and that bike has a low compression engine, lower than the FZ-07 and 87 octane is supposed to work fine.
Anyway, soon as I got home, even though I had half a tank of that same cheap Murphy gas in the FZ-07, I went to an Exxon station and filled up with premium just to be sure. I haven't had any issues I can identify with gas in the FZ-07. There was that stalling on occasion. I don't think that's octane or fuel related but who knows? In any case, no more cheap gas for me. Heck, I'm even afraid to use the midgrade or premium gas from Murphys now. I don't know if it was the gas or the bike, and I suppose when fuel goes back up, I may see if midgrade works, but for now, I'm sticking with premium with no plans to go back to Murphys.