Speedometer Divides By 2

[jadyna]

Rolling down the highway I look at my speedo and it indicates about 50kph. Well I know I was going faster than that and the tach verified I was at around 100kph. So the highly intelligent electronic speedo was dividing by 2.  Happened twice intermittently. Cleaned the speed sensor and all seems good now.
Bike has a few miles on it and the sensor had some dark grey residue and a bit of fuzz.

Thought I would share this in case any of you run up against a speedo attempting math.
2000 FXDS with 163,000 kilos which is just a hair over 100,000 miles. Redline in the tranny.

jadyna

[harleyfarmer]

jadyna, I had a 2000 FXDX that did the same thing. When it happens, reach down and turn key off and on real fast and you're good to go. I didn't feel like tearing things apart. Hate working on electrical gremlins. Loved the bike though.

[tmwmoose]

there's fine metal debris usually from normal wear collecting on the speedo sensor when you turn the power off and back on it gives it a chance to wash off the sensor till next time

[jadyna]

Thanks Harleyfarmer. It is intermittent so I will try this should it happen again.

[BUBBIE]

My 00 FXDS had similar problems and I found the two wire sensor on the tranny had something to do with it also... (loose dirty connections there)
Then I put in a set of 6 speed gears and it read 50% all the time...

Showing 25 MPH would actually be 50 MPH and the mileage was the same, 1/2 of what should have been registered...

A ? 200$ box elevated that... Setting it up to a proper MPH... Actually you could hook up the Box and set it to any speed you wanted it to show...
That was long ago and I still miss that HOT 95" FXDS...

signed....BUBBIE

[kd]

Ever get a backfire when you cycle the key?

[harleyfarmer]

Yes it would sometimes backfire.

[Admiral Akbar]

My 00 FXDS had similar problems and I found the two wire sensor on the tranny had something to do with it also... (loose dirty connections there)
Then I put in a set of 6 speed gears and it read 50% all the time...

Showing 25 MPH would actually be 50 MPH and the mileage was the same, 1/2 of what should have been registered...

A ? 200$ box elevated that... Setting it up to a proper MPH... Actually you could hook up the Box and set it to any speed you wanted it to show...
That was long ago and I still miss that HOT 95" FXDS...

signed....BUBBIE

The speedo wire on an 00 FXDS was 3 wire.. Hall effect..

[BUBBIE]

You know Max, That may have been Some my problem...

Glad you are around to correct me every Once and a While...

signed....BUBBIE