Another silly question. Do water cooled scooters have a fan as well?
On the water radiator, yes.
Sit in traffic...and it will click on...signal sent from temperature reading pick-up.
My Burgman can idle forever it seems before radiator fan kicks on. Big radiator?
Water cooled engines are more efficient. ...more powerful....cleaner....more everything. Including - more parts to fail...more places to leak...more expensive to repair, build & keep serviced.
Old aircooled VW's ran forever in all climates - if you kept valves checked and oil changed.
Ferdinand was my kinda guy....
Stig