My 1993 1500A over the years has blown the tail, meter, position fuse about every 1000 miles or so, and I just replaced the fuse and it was good to go again. But this time there is a direct short and the fuse blows instantly. But when I use a OWM meter on the fuse holder there is no reading to ground, What am I missing?
Are you referring to the # 8 tail illumination (15-amp) fuse.....??
If so, that powers the "load voltage" to the # 3 tail main relay.
Check that # 3 relay and its contacts. You want to have clean and tight contacts.
That relay powers a lot of different items on your bike. Any of which could be causing the short to ground....!!
I would recommend you narrow the short down to the front or rear of the bike by doing the following:
Disconnect the White 22-pin connector (with 12 wires) located under the seat, left side.
Does the fuse still blow.....?? If not the issue is on the rear of the bike. If it still blows, the issue is on the front of the bike.
Depending on your results, we can help you with what is controlled by the #3 relay.