Originally Posted by newt_sr
according to the XT600 thread, the down tube strainer can be torqued to 65 ft.lbs. (referred to as 'nipple hose' in the book, I think). XTphreak said he had to use a strap wrench to hold the frame as he was wrenching the nipple hose/down tube fitting.
I tried to this sob off my bike and gave up with no success. i stopped applying more torque due to fear alone. too bad the motor mount covers this thing up otherwise you could do this operation with some confidence.