Perhaps make this a sticky, mods? Thanks!
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DID website: (Note: they do NOT recommend the use of a "solvent" like kerosene though they don't specifically list that). Also, they say do NOT use even a soft brush on O or X-ring chains because they can damage the O/X-rings.
http://www.didchain.com/chainMaintenance.html
Info from RK: (Note: they ok the use of WD-40 ONLY to displace water after washing, but chain lube will do the same thing because it's oil as well.
http://www.rkexcelamerica.com/faq.html#oring
From the Tsubaki site: (Note: They say do NOT use kerosene: "To clean your Tsubaki chain, it is first necessary to raise the motorcycle on its centre stand with the engine off and the transmission in neutral. Then rotate the rear wheel of the motorcycle (using care to keep your fingers away from the sprockets and chain), spray a moisture displacement lubricant to one side of the chain. After 2 or 3 full revolutions, switch sides and repeat. In this manner you have floated the dirt off the chain and now you need to wipe off the chain with a clean cloth to remove the excess lubricant and dirt residue. Never use a flammable solvent such as gasoline, benzine or kerosene. Additionally, never use water, detergents, steam cleaner or a coarse brush as these damage the chain."). Detergent being things like "Simple Green".
Basically, exactly the method I use.
http://www.tsubaki-rider.com/?type=maintenance