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Old 15th July 2017, 12:13 PM   #1
Stingray65
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smith GT40 GPS speedo install instructions

I have installed my GPS speedo and as soon as I did the needle jumped to 200 mph and continues to want to move further, and now I cannot find my installation instructions to determine if I wired it correctly. The store I got it from won't be open till monday but was hoping to have my dash finished this weekend, anyone with wiring instructions, thanks.
-Steve
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Old 15th July 2017, 01:50 PM   #2
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Howard Jones
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Re: smith GT40 GPS speedo install instructions

Do you have a model number for your speedo ? I have tried to Google "smiths gps speedometer install instruction's" and come up no joy. Are you sure it's a Smiths gauge?
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Old 15th July 2017, 02:33 PM   #3
Stingray65
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Re: smith GT40 GPS speedo install instructions

yeah I have googled it too, the company I bought it for is closed this weekend, but from what I understand they supply all the GPS speedo GT40 units
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Old 15th July 2017, 05:39 PM   #4
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Re: smith GT40 GPS speedo install instructions

Does this look relevant to your gauge?
http://www.caigauge.com/documents//p...42-460-435.pdf
Whoops... Not for a GPS gauge.
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Last edited by Bob Putnam; 15th July 2017 at 06:01 PM.
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Old 15th July 2017, 09:49 PM   #5
SwiftDB4
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Re: smith GT40 GPS speedo install instructions

Most likely a Speedhut gauge?
http://www.speedhut.com/instructions...structions.pdf
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