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Author Message   Coxster Posted on Friday, February 03, 2012 - 07:18 pm:        I've read here and there about too much voltage being applied. If any of you have a wiring diagram, I'll bet I can come up with a voltage regulator circuit to tackle this problem. ( past electronics experience @ flamethrowers.com and conklinguitars.com, check them both out : ) thanks Coxster   Daveswan Posted on Friday, February 03, 2012 - 08:00 pm:        the new speedo sensors updated (5 volt regulated) speedo sensor part number: 74402-95B (part revised 04/11/2004)   Buellistic Posted on Friday, February 03, 2012 - 08:26 pm:        Be sure to change your transmission oil/fluid every 5K to keep amount of metal down in the transmission oil/fluid ...   Littlebuggles Posted on Friday, February 03, 2012 - 11:29 pm:        There's a couple threads explaining the process of modding the stock part Jim. I'll look into the KV for you a little later tonight when I've got sit down time and put up the link. If your current part is bad I have one I bought a few years ago and ended up not needing that I can sell you if your dealer is going to have to order the part.   Ltbuell Posted on Saturday, February 04, 2012 - 11:00 am:        My speedo sensor went out on me back in May/June'11 and i replaced it with a new on and it has been working fine since.Lt   Hogluvr Posted on Saturday, February 04, 2012 - 11:06 am:        What is the difference between 74402-95B and 74431-01? That is what they call for on my '01, which I need to replace?   Coxster Posted on Sunday, February 05, 2012 - 12:16 am:        Here's the KV link: http://badweatherbikers.com/buell/messages/3842/10 307.html I'm wondering if anyone ever tried a 7805 Voltage regulator ( Mouser, Digikey, and once upon a time - Radio Shack ) Left pin-Volts In, middle pin-gnd, Right pin-5V out. http://datasheetreference.com/7805-regulator-datas heet.html Better than a resistor, but I'd probably put on on the supply side just to knock out some noise . . .   Reepicheep Posted on Sunday, February 05, 2012 - 10:29 am:        Yes, we used them, they work great. In theory you should also have a couple caps on them, but I doubt it's necessary for this application. You can also just cannibilize an old cell phone charger, and cut that up and use it.   Sanders Posted on Sunday, February 05, 2012 - 01:42 pm:        If you have an aftermarket coil, it will cause the speed sensor to go out. I had this problem about a year ago. I went through four speed sensors before I figured out what was causing it. The Daytona coil was causing to much EMI on the speed sensor wire. I separated the speed sensor wire from the wiring harness and move it to the other side of the frame and wrapped it in shielding. I haven't had a problem since. The cell phone charger works and so does wiring it into pin one of the ECM.

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