How does a Harley Speedo work?

How does a Harley Speedo work?

When the engine turns over, the driveshaft turns to make the wheels spin round. The speedometer cable, powered by the driveshaft, turns as well. The cable spins a magnet around at the same speed inside the speed cup. The magnet rotates continually in the same direction (in this case, counter-clockwise).

Do you have to have a speedometer on a motorcycle?

You do NOT need a speedometer. The vehicle code does not even contain the word speedometer anywhere in it. THAT BEING said, if you choose not to ride with a speedo, and you happen to get a speeding ticket, there’s no way for you to be able to argue with the cop, as you’ll really have no idea what speed you were going.

Why does the speedo on a Harley Davidson stop working?

The magnetic speed sensor pick up gets fouled from the metal shavings in the transmission which causes the speedo to stop working and the directionals to stop self canceling because of no input to the ECM from the sensor. The ECM thinks that the bike is standing still because of no input.

Is it bad to not have a speedometer on a Harley Davidson?

Having a faulty or inoperative speedometer leaves you susceptible to speeding tickets. While not always required, not having one isn’t a very good idea. Although a faulty speedometer can be a bummer, diagnosis and repair of a non-operational speedometer is among the easiest problems to fix on your hog.

What to do if the backlight on your Speedo stops working?

Discussion in ‘ Sportster Models ‘ started by NCBILL, Apr 15, 2017 . My 06 Sportster Service and Repair manual from HD states that if the backlight on my speedo quits working, there is no bulb replacement, and the owner will need to replace the unit itself.

Why does my odometer stop working on my Harley Davidson?

It’s located on the transmission just behind the rear pipe. A good quality gear lube will just about eliminate this problem. The magnetic speed sensor pick up gets fouled from the metal shavings in the transmission which causes the speedo to stop working and the directionals to stop self canceling because of no input to the ECM from the sensor.

Why does my Speedo not work on my Harley?

Speedo works when it wants but only at highway speeds and again randomly. Now blinkers are starting too work intermittently. Any ideas? Don’t believe both switches would go at same time, Short maybe or relay. Not sure and I would appreciate any ideas. Might be a failing Harley speed sensor. Remove the sensor and see if it needs to be cleaned.

Why is the speed sensor on my Harley not working?

Don’t believe both switches would go at same time, Short maybe or relay. Not sure and I would appreciate any ideas. Might be a failing Harley speed sensor. Remove the sensor and see if it needs to be cleaned. Sometimes, fine metal shavings or or a paste like film from normal transmission wear can cover the end of the sensor.

Having a faulty or inoperative speedometer leaves you susceptible to speeding tickets. While not always required, not having one isn’t a very good idea. Although a faulty speedometer can be a bummer, diagnosis and repair of a non-operational speedometer is among the easiest problems to fix on your hog.

Discussion in ‘ Sportster Models ‘ started by NCBILL, Apr 15, 2017 . My 06 Sportster Service and Repair manual from HD states that if the backlight on my speedo quits working, there is no bulb replacement, and the owner will need to replace the unit itself.

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