Acceptable repair.. yes - to get you to a place that has a complete replacement chain. Or to continue your trip .. but orgainse a replacement chain to be posted to you a little way down the track.
I've seen a connecting link brazed together .. it held for 3 days of gental riding .
Once one link fails .. how far are the rest behind it? Was the chain recomened for the F650? Or was it a cheap chain ...
Regards Frank Warner
motorcycles BMW R80 G/S 1981, BMW K11LT 1993, BMW K75 G/S