So I was doing some maintenance this weekend on the 640.
Oil change was 3 drain plugs, 2 filters, 2 places to fill oil ..... good thing I kinda like the bike!
Anyhow, when checking the radiator level, I found a lot of crystalization in and around the cap - floaty crusties on stuff - sometimes not easy to pick off... my assumption is that it's down in the channels.
What does that mean? Can I get it out with a good rinse or do I need to take off the radiators? Can I boil it clean or do I need to replace? When does it matter?
Wacked
Look closely on the instrument cluster, I think the trade light is on!! :o
Skank in the water? I thought you were talking about trashy women in a hot tub or something. :o
I would use a mixture of CLR diluted in distilled water and run that in there for a short ride, drain it and then thoroughly flush it again with distilled water before refilling it. CLR should dissolve just about anything that would crystallize in there. I'm guessing maybe a previous owner introduced tap water with a high TDS into the system causing calcium or lime to form the crystallization.
That was my thought as well.