I have a CBR F3 and it keeps overheating and spitting fluid out of the overflow tube. Once the bike starts to overheat the overflow reserve starts bubling and fills all the way to the top and starts draining coolant out of the overflow tube. I replaced the thermastat, and checked the fan. Both are working fine. I thought maybe it was my water pump. I dont know what else to do.

 

when you did your t-stat .. did you see a plug cause you might to prime the lines by taking all the air out, theres probly a release plug for that..

 

I think I fixed it. I think I just needed to get all the air out. Thanks

 

ok that was it then