300ex mxracer
10-16-2007, 12:10 PM
on my 450r, almost every race and practice, antifreeze comes out of the overflow tube. i have it routed down one of the frame tubes under the hood. its not alot but enough to notice it. the radiator is clean. i tryed running the fan full time and the motor ran cooler, but it still overflowed. it is full over antifreeze, but it has not been changed since last december. i will try changing it and see if that helps. it didnt start doing this till about 3/4 through the race season.