It has aptly been described by imranbhatti. I have owned a 250 FZR for five years and despite being 45HP the FZR had more acceleration and thrill as compared to GS500 with 52HP.
As far the coolant/water leakage is concerned, there can be a few reasons for it. As per my experience with the FZR, whenever coolant level was above MAX mark in the reservoir bottle, the extra amount of coolant would flow out when the engine was warm and the maximum level was maintained, nothing to worry about. However, I had one incident when coolant flowed out way too much even after half km run and when I traced for reasons it turned out that it was because the radiator cap rubber was damaged and it was not causing enough pressure to keep the hot coolant in radiator in control so it would flow into the reservoir and out through the exit pipe, change of the radiator cap (Rs.50) solved the issue like it was never there
Apart from above mentioned reasons, coolant overflow is an indication of gasket problem, time to worry..