I wouldn't worry too much about how much coolant went in, as long as you purged the air. fill radiator all the way to top, shake it back and forth a few times. Refill to top. Start bike, usually the coolant will go down as if fills in other areas and air pushes out. Let the bike run until the coolant reaches the top again, and give the coolant hoses a few squeezes then seal the radiator. Fill the reservoir as needed.
I assume that's what you did when you said you purged the system but just double checking.
As far as the oil, the white stuff could just be a little foam. Oil can foam up. You didn't overfill it right? If it's in between the reservoir lines, I probably wouldn't be too concerned. Let the bike sit overnight to see if it happens again. If something separates itself from the oil, then it might be water or coolant and that could indicate a head gasket or something that might be about to fail.
I assume that's what you did when you said you purged the system but just double checking.
As far as the oil, the white stuff could just be a little foam. Oil can foam up. You didn't overfill it right? If it's in between the reservoir lines, I probably wouldn't be too concerned. Let the bike sit overnight to see if it happens again. If something separates itself from the oil, then it might be water or coolant and that could indicate a head gasket or something that might be about to fail.