Early TC speed sensor

[CarlosGGodfrog]

How does the speed sensor work ? By this I mean what does it detect ? Does the Baker 6 into 5 work with a stock (2000 Heritage) speed sensor ?

[jls 64]

I thing it will,but you.mast recalibrate your spedometer,googgle sim1A fron dakota digital,vss send pulses to spedometer. I thing baker provide de recalibration unit with the kit.sorry my inglsh.

[CarlosGGodfrog]

How is it different than the HD 6 speed ?

[jls 64]

conector type,2000 have deutz type, and the signal goes throw de pc to speedometer,when you change to six speed no longer reed the same,pulses it pickup the signal from different gear,better put new oem same part number  amd sin1 or similar  so you correct the new pulses.

                                                      jls

[smoserx1]

How does the speed sensor work ? By this I mean what does it detect ?

My understanding is it reads the teeth on the 4th gear on the mainshaft.  I guess the increasing frequency from the faster spinning gear is sent to the speedometer and interpreted as a speed.

[jls 64]

 yup,so he must recalibrate the speedometer,can use the old vss plus a sin1  for correct the pulses

[Pirsch Fire Wagon]

1. The Calibration Unit Ships with all DD6 Builders Kits
2. The Speed Sensor works on the revolutions of the Main Shaft. A "Hall-Effect  Sensor" on a 5v Circuit.

[FSG]

counts teeth on 4th gear

http://harleytechtalk.com/htt/index.php?topic=95816.0

[koko3052]

1. The Calibration Unit Ships with all DD6 Builders Kits
2. The Speed Sensor works on the revolutions of the Main Shaft. A "Hall-Effect  Sensor" on a 5v Circuit.

That is correct!

[FSG]

1. The Calibration Unit Ships with all DD6 Builders Kits
2. The Speed Sensor works on the revolutions of the Main Shaft. A "Hall-Effect  Sensor" on a 5v Circuit.

That is correct!

depends on how you look at it

stock 5 speed it counts the teeth on 4th gear, change the gearset to something other than a stock 4th gear or a 6 into a 5 box and that speed sensor is going to be counting something different so a calibration unit is going to be needed

[1FSTRK]

1. The Calibration Unit Ships with all DD6 Builders Kits
2. The Speed Sensor works on the revolutions of the Main Shaft. A "Hall-Effect  Sensor" on a 5v Circuit.

That is correct!

depends on how you look at it

stock 5 speed it counts the teeth on 4th gear, change the gearset to something other than a stock 4th gear or a 6 into a 5 box and that speed sensor is going to be counting something different so a calibration unit is going to be needed

FSG 

[Pirsch Fire Wagon]

1. The Calibration Unit Ships with all DD6 Builders Kits
2. The Speed Sensor works on the revolutions of the Main Shaft. A "Hall-Effect  Sensor" on a 5v Circuit.

That is correct!

depends on how you look at it

stock 5 speed it counts the teeth on 4th gear, change the gearset to something other than a stock 4th gear or a 6 into a 5 box and that speed sensor is going to be counting something different so a calibration unit is going to be needed

Yes, the 4th Gear on the Main Shaft is what is used. The spacing of the Teeth are the "Window-Open (Open)" and the Teeth are "Window Closed (Ground)". The Shaft itself has no such machining.

[koko3052]

1. The Calibration Unit Ships with all DD6 Builders Kits
2. The Speed Sensor works on the revolutions of the Main Shaft. A "Hall-Effect  Sensor" on a 5v Circuit.

That is correct!

depends on how you look at it

stock 5 speed it counts the teeth on 4th gear, change the gearset to something other than a stock 4th gear or a 6 into a 5 box and that speed sensor is going to be counting something different so a calibration unit is going to be needed

I was only agreeing with what Pirsch Fire Wagon was referring to as last winter I installed Bakers DD6 into my 05 Fatty. The kit included a speed sensor to be changed & a calibration unit. The calibration unit is perfect as I adjusted it with my GPS & now my stock speedo is dead on the money. I'm sure that most of us know that harley speedos always read higher than actual....maybe that's only on black bikes??

[CarlosGGodfrog]

Thanks for the explanations guys.

[CarlosGGodfrog]

To KoKo3052 - when you recal via gps, is the speedo correct in all gears, or just in 6th (on a 6 into 5) ?

[koko3052]

Speedo is correct in all gears.

[CarlosGGodfrog]

Thanks.

[PoorUB]

Carlos, the speedometer reads the output shaft speed so it doesn't matter what gear you are in, or even if you are not in gear.

[CarlosGGodfrog]

Others have said it reads the teeth on fourth gear. Now I'm confused. Reading the output shaft makes sense.

[PoorUB]

Forth gear on the output shaft. Both comments are correct.