I've owned two FZX700 Fazers; nothing went wrong with the first one that I bought brand new in 1987. The second one I owned (in 2000) needed a little electrical work, about $500 worth.
Power to spare, and its engine has a killer sound. Some call the Fazer the Baby V-Max; I've owned the V-Max too, and I say the V-Max is the Fazer Senior. It is very comfortable to ride conservatively, makes a great commuter. It is rock solid at freeway speeds - unlike the Honda Nighthawk 650 which was a little 'wobbly' up front on the highway, not my favorite sensation.
I'm told that even though the engines and valve assemblies are complicated, they're rated to go high miles.
Do you know the horsepower/top speed of this bike?