The Maximum Load (rider, passenger, riding gear, cargo & accessories) is 353 lbs. so you'd be pushing right up against that limit.
If a passenger is only an occasional thing then the R3 will work, though don't expect brisk acceleration and I'm sure that passenger seat is not in any way comfortable...
If you plan to have a passenger along more frequently, I'd say get the FZ-07. No worries with a passenger on that bike and it's an awesome ride!