On my 90 Westy my distributor has the 3 wire connection on one side which I
think is attached to the hall sender.  On the other side of the distributor
is an unknown electrical tab connection on the housing.  I have no wire
attached to this.  Can anyone tell me what wire is missing?  Perhaps a
ground wire?  I've searched Bentley but found no reference.

Thanks.
Laurence Smith
Hamilton, ON
90 Westy (Fanumbos)