Loose Nut
 

Well, totally detached nut actually...

Was just cleaning the bike (SK3) and found what appears to be the lower engine mount nut, located just above the side stand mount, completely off it's threads. The only thing keeping this large castle nut with the bike was a breather pipe which was tight up against it. The end of the spindle has a hex head which leads me to believe it may be more complex (adjustment ?) than just a stud / bolt and nut. Anybody seen this problem before? I've replaced the nut and tightened up AFAP but not torqued. No wrench or torque figure.

Ratty