Just a crazy thought … does pressing the trip reset switch change anything? I looked at the wiring diagram for a 1998 FLHR and it looks like the speedometer and the speedometer lights would all get power thru the Orange/White stripe wire. A Black wire for ground, White/Green from speedo to turn signal module (for self cancelling signals) and a Black/Yellow for the Check Engine Light. The VSS should get power from the spedo - Red, ground - Black, sensor output - White.

Just an FYI … there is a troubleshooting guide with a section for speedos https://serviceinfo.harley-davidson....011382675!!1!3

 

Trip reset does nothing. Already tried that. I have power on the o/w wire. Nothing on red wire. PITA! Not sure where to go from here.

 

If I'm following the schematic correctly the power comes in on the O/W.
This also feeds the lights. So if the lights work and you have no power on the red to
the speed sensor the problem's IN the speedometer.

 

Checklist is pointing towards actual speedometer. Possible wire connection failure inside speedometer at board or internal component failure.