The sensor just plugs in. Its magetic, not sure if it uses the Hall effect or not.

Theres not much to it, the hole needs to be above whatever it is it looks at.

 

If you are simply changing cases, then there is nothing else to it. The sensor just plugs in.

If you are machining a set of older cases to use a sensor, then their is allot more involved. I machined the hole in the case of my old softail. If I had to do it over again, I would have bought a new case.

 

I need to do this to my fxr, can you tell me where you drilled it and what exactly does the sensor read so I know exactly where to drill it.
cheers mate glenn. my email is soupaman@primowireless.co.nz

 

I have a new delkron case. I just was curious what the sensor was sensing, gear, shaft, etc. Wanted to make sure I didn't have to add anything before buttoning it up..

 

I believe I understand what Malx is asking. He is asking "what do I need if I had a mechanical speedometer and now have a tranny with a speed sensor hole"?

The reason I know is that I have just changed transmissions and my new one has the speed sensor hole and the sensor (sending unit) as well. I just purchased a plug (get a good one with the o-ring on it) and plugged the hole. I do not want to alter my speedometer, but it appears that Malx does.

However....if it was a simple as plugging the sensor directly into an electronic speedo...I would consider it. My new tranny is a recent Harley take-off so all my stuff is HD.

Come on techno-geeks....chime in here! Does the signal from the sensor pass through the ECU or some other module before it gets to the electronic speedo?

 

Hey fellas, Sorry for the delay. Greatly appreciate the info. I was out of the country for the last couple months so i didn't have the availability of the forum. Once I realized i needed to upgrade the mechanical speedo to an electronic unit I as well as the sensor it all fell into place. Been on the site eveyday since I've been back and get to absorb a wealth of info from you guys. Anyway the bikes are ready and just waiting on the roads to settle down and the sand & gravel to get cleared. We are talking Maine.. Thanks again Malx

 

It sits in a boss that is cast into the case. You'll need to TIG some material onto the case and build it up before you machine it. The sensor just counts the gear teeth as they pass by, but it needs to be located at the right distance from the teeth.

You can see it in this photo.

 

You can also just add a gasket underneath it to get the distance right,
Baker sells them.

 

Therm. Was it 40 - 60 thou? I thought I had seen a set of taller gears by andrews. Or can you just set the height of the sensor to the right distance. Then don't you also need to convert to an electronic speedo along with wiring changes.

 

No idea as to what the distance should be. But I'm thinking it's just a Hall effect sensor so .017 to as much as .040 should work. Be sure to use a brass feeler gauge.

I"m not sure about the gears. I know Zippers and some others sell heavy duty gear sets. But I would think that was just materials and tooth angle.

Not sure what you are doing, but if I might just give Baker a call and see what they have to say on it.

 

I was going to switch out to a electronic speedo, install a sensor but I assume that there're some wiring issues to get it all to work. Pretty sure it's not just a plug and play scenario.

 

The early ones were just line voltage to the speedo head, and it fed the speed sensor. The three wire sensor harness went right back to the speedo head.

I've seen some speed sensors that were cable driven. Not sure who makes em.