So, is that a yes?(I haven't watched the almost 20 minutes of videos yet... )
BG products are also available thru Advance Auto Parts, in Colorado anyway. And BG will decarb a combustion chamber. It is a unique formula that will actually soak into the carbon before it ignites and eventually breaks it loose spitting it out the exhaust.
You just add the 44K directly to the fuel and run thru the entire tank. Bikes usually require 2 tanks to get the full effect. And it is totally safe for catalytic systems in cars, and I know they sell a smaller bottle for bikes, so I don't see why it wouldn't be safe to use in a UCE Bullet.