Coolant Smell

I have a 2002 VZ800 Marauder and towards the end of the riding season last year I started smelling coolant after a run. No sign of anything leaking and I only had to top it up with about 250ml. Has anyone any idea where I should be looking for this apparent leak.

Try giving any suspect area's (anything involved with the cooling system) a dusting of Talcum powder, Any sign's of moisture or leaks should become visible then 

My 01 Intruder has a small overflow hose that is routed to discharge under the bike near the battery box. Any temperature change outside at that point or signs of overheating? I have had some minor drips when the weather is warmer