By the numbers, no. Yamaha lists a maximum load for the FZ1 of 420 pounds, 80 pounds short of the combined weight of you and your wife. Unfortunately, there are not many sportbikes with that kind of load-carrying capacity. The FJR1300 and Super Ténéré both have a maximum load of approximately 460 pounds, for example, and even the BMW K1600GT — with 488 pounds of load-carrying capacity — is a bit shy. If you are determined to find a standard bike to ride two-up regularly, you may want to consider the Suzuki GSX1250FA. It’s heavier than the FZ1 to begin with, but has a stout 480-pound maximum load. Still, I think it would be safer — and more comfortable — for you to be on something like a sport-touring or adventure-touring bike. While they are still a bit under the load capacity you’d need, either would be a much better starting point than the FZ1. Shop around and check the owner’s manuals for the maximum load listing. Whatever bike you purchase, you will most likely need to upgrade the suspension with stiffer springs. Use sport-touring or touring tires (that have a stronger carcass than sport tires) and set the pressure to what the manufacturer recommends for maximum load.