Kawasaki Sportsbike Riders Club - Australia - Online Forum

Hey guys First post hopefuly wont be the last,
Recently pulled apart my zx2r cleaned it changed the sparkys and put it back together. but now im curious , when my bike idols is the fan behind the radiator ment to be going or only when im riding. Thanks

Welcome .

You'll find with most bikes that the fan is wired through a temperature sensor switch so that it only comes on when the coolant reaches a certain temperature. Most of the time this is only when parking your bike or sitting still. When you're moving the airflow through the radiator keeps the coolant at a good temperature, when you slow down there's not so much airflow so the fan is there to help keep the engine temperature down.

Some bikes the fan will only run when the ignition is on, some like my 750 don't rely on the key being in the ignition for the fan to run.

Thanks so much mate, Took a load off me haha. Waiting on my new fairings to arive ill be sure to post a pic for the community