Yuck! antifreeze.
3 Drain screws on the Tuoldo,....one in the water pump housing,then left/right rads.Drain old coolant,...refit drain screws then refill system at the expansion tank filler.Fill it up to the neck.No bleed screw,so run the bike and get her up to temp.Top up tank if necessary.O.K. here's another, I think my coolant may just be water (it's clear so I cant easily check the level) so a flush and new antifreeze is on the cards. But how do you do it?