05-03-17, 01:02 PM
I would personally replace that radiator cap. Cheap enough on ebay....
http://www.ebay.co.uk/itm/YAMAHA-FZ1-FZ1...25ce1ffef1
http://www.ebay.co.uk/itm/YAMAHA-FZ1-FZ1...25ce1ffef1
FZS 1000 Gen1 (2003)
Tiger 900 GT Pro (2020)
Tiger 900 GT Pro (2020)