Which way are you turning it? If you're assuming French and RH thread on both sides you may be wrong, Motos are often Swiss threaded, adjustable RH, but fixed cup LH like an English BB, but with french size/pitch threading. If they stuffed an english BB in a french/swiss shell, it still should come loose as 1.37" = 34.8mm, french/swiss is 35.0. Butchered but still should come out. You have the lockring off - do you have another BB as a reference that it will thread onto?