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Speedometer 20mph fast

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Old Sep 17, 2011 | 07:08 PM
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Trucker73's Avatar
Trucker73
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Default Speedometer 20mph fast
I have a 1990 Fxsts that i bought and the speedometer is not the original it has a speedo/tach combo in it. Problem is it reads 20mph faster than actual speed. is there a way to re calibrate this or do i have to find a different one?
 
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Old Sep 18, 2011 | 12:02 AM
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Originally Posted by Trucker73
I have a 1990 Fxsts that i bought and the speedometer is not the original it has a speedo/tach combo in it. Problem is it reads 20mph faster than actual speed. is there a way to re calibrate this or do i have to find a different one?

The original speedo is a 2240:60 Ratio...more than likely it has been replaced with a more common 2:1 ratio...get the correct one and all will be good.
 
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Old Sep 20, 2011 | 04:50 AM
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That'll make the miles roll up faster...

Of course the other side is during U next bar bragging talk,, she'll do 115 in a Quarter mile..
 
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