Tach on 06 dyna from serial data line ?
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Tourer
Joined: May 2013
Posts: 365
Likes: 1
From: under a rock in the swamp
Tach on 06 dyna from serial data line ?
I hope i have not skipped over the answer some where but here i go. The 06 FXDB does not have the proverbial l pink wire folks talk about. But under the dash to the speedo is a light green wire with purple stripe. It is a serial data cable and goes to pin 2 on the speedo. I seen on some models that include a tach the share this same wire. Now my question is them cheapo 3 wire tach's that are aftermarket will they work on the same wire. Please i really appreciate some help and answer's please so thanks gentleman Oh and reason i dont want to do the pin 3 on the ECM is this old mans hands are way to shaky to fiddle with getting a wire in that darn pin. If some one be willing to solder a 6 inch or so chunk on one them pins and sell me it i take that offer too 
Here is a link to the model tach if it helps any.
http://www.bkrider.com/BKRider/skuse...eria=C01054735
Here is a link to the model tach if it helps any.
http://www.bkrider.com/BKRider/skuse...eria=C01054735
Road Warrior
Joined: May 2010
Posts: 1,718
Likes: 15
From: Bay area, CA
I'm not 100% on this but I would say that tach doesn't run off the serial data wire. It says "all Harley's" but there has been numerous changes to Harley's ecms over the years so my bet it that hooks up like any other old school after market tach... Even Harley's own tachs are not universal to all years. I'm sure someone that know more than me will chime in too.
Road Captain
Joined: Apr 2013
Posts: 583
Likes: 4
From: australia
I hope i have not skipped over the answer some where but here i go. The 06 FXDB does not have the proverbial l pink wire folks talk about. But under the dash to the speedo is a light green wire with purple stripe. It is a serial data cable and goes to pin 2 on the speedo. I seen on some models that include a tach the share this same wire. Now my question is them cheapo 3 wire tach's that are aftermarket will they work on the same wire. Please i really appreciate some help and answer's please so thanks gentleman Oh and reason i dont want to do the pin 3 on the ECM is this old mans hands are way to shaky to fiddle with getting a wire in that darn pin. If some one be willing to solder a 6 inch or so chunk on one them pins and sell me it i take that offer too
Here is a link to the model tach if it helps any.
http://www.bkrider.com/BKRider/skuse...eria=C01054735
Here is a link to the model tach if it helps any.
http://www.bkrider.com/BKRider/skuse...eria=C01054735
pins are easy get them from a h/d shop just strip and squeeze and then push in ecm plug.. because mine was being used I just strippef some plastic outer sheath off and bridge the wire.. power for light again bridged wire in the head stem wires same earth
. I used the Dakota digital tach bounces around a bit, but **** easy install .im 55 years old and hand shakes too on some things,
Seasoned HDF Member
Joined: Jul 2008
Posts: 9,282
Likes: 1,139
From: southeast PA
Here's a post that should help you, make sure to check out the link as well. Lots of pics and step by step info.
https://www.hdforums.com/forum/elect...-4-of-4-a.html
https://www.hdforums.com/forum/elect...-4-of-4-a.html
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