Hello, I would like to test my radiator fan but have neve actually noticed it coming on before, perhaps only comes on when riding at high temperatures. Is there an easy way to check its still running?

there is a test, do advanced search for radiator fan in the v4 section and im sure you'll find details

edit, found a thread for ya to test it works
viewtopic.php?f=24&t=15326&p=106451&hil ... an#p106451

It comes on at 95 ish...