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Main Area => General GS500 Discussion => Topic started by: Travis on October 11, 2004, 08:33:34 AM

Title: Electronic Tac?
Post by: Travis on October 11, 2004, 08:33:34 AM
Has anyone ever put an electronic tac on a gs? I would like to get rid of my bulky gauges and put on an aftermarket tac but I dont know what to use and where to wire it in.
Title: Electronic Tac?
Post by: dgyver on October 11, 2004, 08:47:14 AM
Most any aftermarket electronic tachs will work, they get their reading from one of the coil signals. Or even one from the earlier 3 wire gsxr's. I had installed a SPA on my old SV but not sure of the wiring details on the GS. There is a gsxr unit on my 91 GS.
Title: Electronic Tac?
Post by: werase643 on October 11, 2004, 02:52:34 PM
GSXR ones work great....but i would recomend a nice custom made cover for the tach drive.
Title: Electronic Tac?
Post by: Travis on October 11, 2004, 07:55:08 PM
What year range and any idea on the wireing?
Title: Electronic Tac?
Post by: dgyver on October 12, 2004, 06:06:35 AM
Early 90's like these:
http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&rd=1&item=2492173128&category=50463
http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&rd=1&item=2491076253&category=50463

or late 80's like this one but note that the tach starts a 3k:
http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&rd=1&item=2494007545&category=35580

I would have to look at the wiring on mine to provide more info on installing it. But basically since there are only 3 wires: one to positive, one to ground and one to the #1 coil signal.
Title: Electronic Tac?
Post by: Travis on October 12, 2004, 08:46:06 AM
I like the early 90s thanks now I know what to look for. I just need to know where to hook up the signal wire.
Title: Electronic Tac?
Post by: dgyver on October 13, 2004, 10:22:09 AM
Travis.......If I don't get back to you about this in the next week or so,  remind with with bump to this thread or pm me. I have another harness to modify so I will be looking at it, just not sure when I will get to it.
Title: Electronic Tac?
Post by: Travis on October 13, 2004, 10:44:48 AM
Thats cool thanks
Title: Electronic Tac?
Post by: dgyver on October 13, 2004, 06:44:47 PM
There are 3 wires from the early 90's tach:

Black/White = negative ground
Black/Red = switched positive
Black/Orange = signal

Connect the Black/Orange to the Orange/White from the Ignitor.  :thumb:
Title: Electronic Tac?
Post by: Travis on October 13, 2004, 08:14:18 PM
Thanks now I can get rid of my ugly bulky gauges.