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[novazeus]

Normally I wouldn't care if the speedometer read a few miles faster than what I was actually running but on the way home today I noticed that the speedometer was reading like 82 when the gps said 77.

Big deal except for the fact that the cruise won't engage over 85, which really means 80.

Has anybody had this problem and can they calibrate the speedometer. This is my second one already because of other problems.

[Chief]

Normally I wouldn't care if the speedometer read a few miles faster than what I was actually running but on the way home today I noticed that the speedometer was reading like 82 when the gps said 77.

Big deal except for the fact that the cruise won't engage over 85, which really means 80.

Has anybody had this problem and can they calibrate the speedometer. This is my second one already because of other problems.

They all pretty much read fast. No calibration that I know of. 

[grc]

I wouldn't use a GPS reading as my reference when checking the speedometer; they have been known to be rather flaky themselves as attested to by the many photos of Harley's doing over 200 mph on their GPS screens.  Find someone with a recently calibrated dyno and have them plot your speedo versus dyno actual to get a better idea of where you are.

Manufacturers have a tolerance for speedo calibration, and unless yours exceeds the tolerance H-D won't replace it.  There is another way, one that's used to recalibrate speedometers when installing different gearing such as a 6 speed on a 5 speed bike.  S&S and others sell a small device that plugs inline with the speed sensor wire and allows you to vary the signal to the speedometer.  They tend to be rather pricey.

Jerry

[Chief]

I wouldn't use a GPS reading as my reference when checking the speedometer; they have been known to be rather flaky themselves as attested to by the many photos of Harley's doing over 200 mph on their GPS screens.  Find someone with a recently calibrated dyno and have them plot your speedo versus dyno actual to get a better idea of where you are.

Manufacturers have a tolerance for speedo calibration, and unless yours exceeds the tolerance H-D won't replace it.  There is another way, one that's used to recalibrate speedometers when installing different gearing such as a 6 speed on a 5 speed bike.  S&S and others sell a small device that plugs inline with the speed sensor wire and allows you to vary the signal to the speedometer.  They tend to be rather pricey.

Jerry

Jerry,

There's a big difference between the flaky "Max Speed" numbers that are calculated in an instance by error and the current speed display. I have been hearing about how the GPS speeds arent very accurate but I have personally checked both my GPSV and my Street Pilot 2610 against interstate mile posts and a timer and have both times they have been dead nuts on while running with cruise control engaged. When I check them, it is usually for 30 minutes which makes the calculations real easy and averages out any inaccuracies induced by me. 

[mr_magoo]

I find my GPS speed to be right on, all the speedometer I've checked it against are 3-8 miles an hour off.

[Boatman]

The dealer or MOCO won't do anything about the speedo reading fast.

I have the unit that Jerry mentioned from S&S that plugs in line from the VSS under the RH side cover.  It is easy to adjust for your speedo to read properly.  I believe I paid around $125.00 for it 2 years ago.

My wife's 03 Fatboy speedo head says "certified" on it and it reads correctly.  The SEEG does not say that on the speedo and it reads fast.      (SEEG used to read fast).

[novazeus]

Waas enabled gps down here in the south, facing south, I'll bet is very, very accurate.

Like I said I wouldn't care if it read fast if they didn't have the speed limitation on the cruise control.

I wonder if they can change the top speed on the cruise control?

BTW it's like 70 degress right now and I rode 105 miles yesterday and about the same today running errands and I didn't want to get off the bike, it was beautiful, a little windy but still beautiful and fun.