White Powdery/Flux Deposits in Radiator...How To Remove?

im not using premix. i use motul inugel expert ultra concentrated coolant and mix my own filtered water at 33%(as it doesn't get passed 45 degrees here,so bike won't get anywhere near passed 124 degrees and doesn't get below 8 degrees here)
 
Engine Ice solved most over heating issues for me. If your going to put 50/50 premix in might as well use the good stuff that helps with overheating issues.

It's a KTM thing. Not my Husky or Beta have ever had an issue. But I also run the Ice.
 
My fan never comes on...:thinking: Oh yeah, I don't have a fan...I just run a gear higher and crack the throttle more to keep the speeds up in the trees...:smirk:
 
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