Join Date: Jul 2015
Location: East Lansing, MI, USA
For "traces" of water after a long winter hibernation, I would do nothing for a while. Thanks to combustion products blowing by the rings, there's always some water in the crankcase and thus the oil. Significant loss of coolant or evidence of oil in the coolant would require immediate investigation. This, as well as milky whitish oil seen in the level window, I've never done anything about and (so far) always disappears with warmer weather and frequent riding.
1998 Ducati ST2
1978 Suzuki GS1000c