Hi all, I have the same issue on my 650, used daily 30-40 miles a day (about 1/2 hour trip each way).
Went from Northampton to Bury St Edmunds at the weekend averaging 80mph all the way & it hasn't cleared.
Checked the coolant level-all good.
I changed the oil & filter approx 3k ago before a trip up to Tobermory & around the North coast.
Temp level looks good on the dash.
Engine breather to check next
