Hot water [even boiling!], with a dash of any shampoo, is what I'd use. Rinse off with more hot water. Then blow out the nooks and crannies with compressed air.

WTF , Shampoo? It isn't alkaline [and therefore corrosive to aluminium alloys], unlike many detergents, and rinses away very easily, leaving no residue. A trick o' the trade my motorcycle mechanic put me on to.


Cheers,
Gadge

"ODK Mods can explain it to you, but they can't understand it for you..."

"Crazy can be medicated, ignorance can be educated - but there is no cure for stupid..."