r1blu

Hi all, Is it normal for the coolant level in the overflow bottle to fluctuate quite a lot? My coolant was replaced last week and the mechanic filled it up to around full, I have ridden it a few times and the coolant now is just below low when I look first thing in morning. There are no puddles on the garage floor, the oil is the correct colour in the sight glass and it was bled properly so where does the coolant go? My bike is a 2008 R1 incase that makes any difference. Thanks

Good afternoon all, I am just introducing myself as a new member from Leicestershire. I have a 2008 Yamaha R1, have been riding for around six months and loving every single minute of it. Getting my bike license is one of the best things I have ever done. Here is a quick pic of the bike (taken yesterday after an afternoon ride out with a friend and his very nice MV):