Drag Specialties Mini Tach

By Bill "Wyandotte Kid" Lage

This is the installation process I used to install the Drag Specialties illuminated mini tach (pn#DS243959). I got from my dealer for about $65. It took about two hours with no special tools needed.

1. Remove the 2 nuts on the back of the tach swap the mount around so the hole is at the top. (Tach 1, 2, and 3)
    
2. Remove seat, tank, 2 large black rubber tank bumpers, and the white cover for the electrical box.
    
3. Mount the tach using the small supplied bracket. I didn’t like their bracket so I bought 1” Kuryakyn frame mount bracket and used it. (Tach 4 and 5)
    
4. Stripped the wire loom from the tach. Slid heat shrink tubing up wires leaving the green wire out. Shrank tube and taped joint. (Tach 6)
    
5. Attached green wire from tach to the negative side of the left side (clutch side) coil with supplied connectors. The negative wire is the blue-yellow one. Make sure you have a good connection there. I had to redo mine.
    
6. Ran red and blue wire from the tach into the electrical box through a 3/16” hole I drilled in the top left corner. Ran black wire from converter box through hole to the outside of electrical box. (Tach 7)
    
7. Joined black wires from tach and converter and grounded at front screw for the white electrical box between box and frame. (Tach 8)
8. Joined blue wires from tach and converter. Joined red wires from tach and converter.
    
9. This step is for finding a switched hot wire for the tach. The brown plug in the white electrical box has a black-brown wire looped from one terminal to another on one side of it. I used the black-brown wire on the opposite side of the plug to connect the red wires.(Tach 9) I’ll take a better photo of this the next time I have the tank off.
    
10. Folded the wires and placed them along with the converter in the white electrical box and replaced the lid.
     
11. Reassemble and crank it up. The tach has a cool indigo blue light in it. I wished the speedo had the same thing. Here are the pics of the finished product. One with the supplied mount and the other using the Kury clamp. (Tach 10 &11)