Expansion tank cleaning

[fazersharp]

[quote author=CaptainCazador link=topic=19266.msg223054#msg223054 date=1454175123]
As above why do you care? Just ride it.

I'm in the process of cleaning my Fazer up while I'm unable to ride it because of injury.
I'm doing things like polishing up the headers, tidying up the front of the engine etc and renewing the coolant, oil and filter, brake fluid and so on.
While doing the coolant I found that the expansion tank had a broken mounting so got hold of a s/h one which I wanted to clean up before fitting.
If I could be riding it I would be. 
[/quote]
Well thats different then in that case why wouldnt you give it a good clean, im with you now.
What about drain cleaner, I have just used MR muscle on a job and its good stuff burns when you get it on your skin so it must be good. And safe for plastics as that is what it is for, unsure what plasic the bottle is but it must be a hardy one due to what it has to deal with on the bike.
Try some in your old tank first