I should have started this way... the part is Rectifier, Silicon. Part # 317 1037 1008. (I think my spacing is wrong on part number) there are 4 of these in the harness in a connector under the left sidecover. The one in question controls the neutral light/start function (won't start in gear unless clutch lever is pulled)
My friend who needs it claims he has one coming from another source, thanks