Electronic Tac?

[Travis]

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.

[dgyver]

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.

[werase643]

GSXR ones work great....but i would recomend a nice custom made cover for the tach drive.

[Travis]

What year range and any idea on the wireing?

[dgyver]

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.

[Travis]

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.

[dgyver]

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.

[Travis]

Thats cool thanks

[dgyver]

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.  

[Travis]

Thanks now I can get rid of my ugly bulky gauges.