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Dyna Glide ModelsSuper Glide, Super Glide Sport, Super Glide Custom, Dyna Glide Convertible, Super Glide T-Sport, Dyna Glide Police, Dyna Switchback, Low Rider, Street Bob, Fat Bob and Wide Glide.
I swapped Speedometer from a MPH to KM/H, but when I ride the needle on the new KM/H is where it would be on the MPH instead of displaying the Real Speed.... meaning when I ride 100 KM/H according to the Speedo meter I'm really riding 55 MPH (where I should be at 65 MPH). I have used a GPS app on my phone and to ride 100KM/H my speed display 120KM/H (or just below) (Where it's 65 MPH)
I don't know if I'm clear enough... I looked around on google, and most people says it should be plug and play. but it obviously not in my case. Is there any ECU reprogramming to do at the Dealer??
Hello and welcome.
Perhaps some information is missing.
History of ownership.
Reason:
Perhaps someone installed a speedometer calibrator at some point.
You would be able to locate it because it would be located is between sensor and speedometer.
Was the acquired speedometer a factory fresh out of the box new speedometer that was designated for your year and model?
Reason:
Perhaps the replacement speedometer is calibrated for another model.
Maybe someone changed the faceplate only but actual speedometer is in MPH.
Did you look at odometer for distance traveled as compared to your GPS ?
Is your GPS app as accurate as a regular GPS?
Hello and welcome.
Perhaps some information is missing.
History of ownership.
Reason:
Perhaps someone installed a speedometer calibrator at some point.
You would be able to locate it because it would be located is between sensor and speedometer.
Was the acquired speedometer a factory fresh out of the box new speedometer that was designated for your year and model?
Reason:
Perhaps the replacement speedometer is calibrated for another model.
Maybe someone changed the faceplate only but actual speedometer is in MPH.
Did you look at odometer for distance traveled as compared to your GPS ?
Is your GPS app as accurate as a regular GPS?
Thanks for your fast answer.
1- There is no Speedometer Calibrator install I have looked for this.
2- The speedometer is from Ebay, I ran the Model number and this was suppose to be compatible with a 2007 Dyna
3- No it's really a KM/H speedo It's says KM beside the odometer and distance from the GPS and Odometer is accurate on a 100Km test (off by 3 kms) and GPS speed as been double check with my car and in the car is 100% accurate.
The Odd thing is that looking at my Speedo and GPS, they are bang on on where they would be in MPH if I ride at;
76 KM/H on the Speedo, my GPS say 60 KM/H and its exactly below where 40 MPH on a US Speed wich is equivalent to 60 KM/H
110 KM/H on the Speedo, my GPS say 100 KM/H and its exactly where 60 MPH on a US Speed wich is equivalent to 100 KM/H
135 KM/H on the Speedo, my GPS say 120 KM/H and its exactly where 75 MPH on a US Speed wich is equivalent to 120 KM/H
It really act like the needle points where it would be in MPH.
Bsed on
"No it's really a KM/H speedo It's says KM beside the odometer and distance from the GPS and Odometer is accurate on a 100Km test (off by 3 kms) and GPS speed as"
It reads as if the needle was pressed onto the post incorrectly during assembly since the odometer reads correctly for distance.
Since it is not a calibration issue (odometer reads correctly per your response) then about the only way to resolve is to open the unit, pull UP on needle with a fork and then place needle back on unit.
Taking a guess that needle reads past zero when ON but not moving.
Bsed on
"No it's really a KM/H speedo It's says KM beside the odometer and distance from the GPS and Odometer is accurate on a 100Km test (off by 3 kms) and GPS speed as"
It reads as if the needle was pressed onto the post incorrectly during assembly since the odometer reads correctly for distance.
Since it is not a calibration issue (odometer reads correctly per your response) then about the only way to resolve is to open the unit, pull UP on needle with a fork and then place needle back on unit.
Taking a guess that needle reads past zero when ON but not moving.
no needle it where it should be. So you say its a manifacture issue and the fact that the needle go exactly where is suppose to go on a US speed is purely a coincidence?
If needle is exactly were it should be at rest with bike running and odometer reads correct distance traveled then something is wrong.
Guessing:
Either the stepper motor(little motor that spins needle) for speedometer is somehow timed incorrectly (it is just a shaft)
or
Guessing:
Needle is not pushed onto the stepper motor shaft at correct clock position.
A small amount of error when needle is pushed onto the stepper motor shaft can translate to a big difference in mph/kph accuracy.
Below is a link for a youtube video that might better clarify workings of a speedometer.
So it would seem like it might be a manufacturer problem but sometimes returning product may not resolve issue since replacement could be the same problem.
Depending on your skill set it might require a visit to speedometer correction shop.
The main thing is to make 100% sure that odometer (distance traveled) displays correctly.
If the odometer is wrong and needle is wrong then entire unit has a problem.
A 10 to 16 KPH difference is not too difficult to experience if needle was pushed onto the shaft at wrong shaft position.
A little off at shaft translate to a big error.
This happens sometimes when folks want a custom face on speedometer or change color of lights.
Rereading: Really more of a 5 to 11 KPH difference since most speedometers read higher than actual speed.
Placement of needle at below zero to start will probably make it display correct or very near correct speed.
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Calibration when swapping Speedo from MPH to KM/H
