Autometer 5" speedo and tach install

V-Twin

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Joined
Mar 23, 2008
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148
Here's how I installed the 5" speedo and tach using adapter plates that I had CNC punched off a CAD drawing. I found a drawing somewhere (was it posted by you BBShark?) and my brotehr modelled it in SW. Below is a design drawing off that model, I don't have the original design drawing. The brackets will need a final trim for the 2 "dowels" next to the holes on the little tabs.

The additional little holes at 12 and 6 o clock are for leds for the warning and blinker signals. They are not needed. I'm now going to use them for leds for the signal indicators and a low and high beam indicator on the bottom ones. The measurements are in mm, if you need inches let me know or divide by 25.4

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Here's how the adapter rings come out of the CNC turret punch:
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Because of the jagged finish the ID must be touched up a bit, easiest done with a round flapper disc type abrasive roll. I just went over the ID to take off the high spots of the punch marks so it's a smooth hole. The gauge fits perfectly afterwards.

This system only secures the top part of the gauge pod, the stock system uses a small bracket on both the speedo and tach to secure the bottom. I fabricated some small aluminium brackets to use the original mounting hole (and locating stud) for those brackets and they screw to the lower 6 o clock screw.

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