Speedometer error

[Glyn]

I have an 04, and I see that the indicated speed ( radar checked) is off by about 10 MPH high. ( speedo reads 60, true ground speed is 50)
Has anyone else noticed this, or is it just mine?

Does anyone have any advice or luck with the speedo correction devices?

 

[Haywood]

I have an '02 and my speedo is off by 10kmph over about 110 kmph (for example: indicated 140 is really 130).. I mounted my GPS on board and use that for my true speed. I believe most, if not all, Japanese bikes are like this.

 

[DarkerThanNight1300]

Really annoying! My '02 is off by 7-8%.... reads 50 when actually only going 46...etc.. confirmed with a police calibrated radar unit....no problem though....It was when I worked FOR them before I turned coat and went to the fire dept.!

 

[flrider]

Yellow Box or Speedheeler will fix it right up.

 

[MEYERSJ]

I have seen the yellow box advertised by black robitcs from austrailia. Whats the deal with Speedheeler i've never heard of that one.

 

[dezzy7]

Most are off about 10mph or about 7% if i remember correctly, and progressively gets worse as you move into the triple digits.. I've got a yellow box I'm adding because i changed the gearing and now its off about 20%. I'll let you know how it works out in a week or so

 

[vincent]

170 indicated gets 154 on gps.

 

[quadb0y]

Vincent, can you explain what you mean here by GPS ?
I don't think you mean the standard Gear Position Sensor.
Is this another device that shows gear / speed / etc ? If so how is it more accurate ?

 

[Johnnycheese]

Vincent, can you explain what you mean here by GPS ?
I don't think you mean the standard Gear Position Sensor.
Is this another device that shows gear / speed / etc ? If so how is it more accurate ?

Global postioning satalite

 

[quadb0y]

Really ? Wow - I was thinking about that but was convinced it was something else ..
So you can track your position & plot distance / time from that

cool stuff .. and very accurate.

My Speedohealer is on it's way, will post how it performs soon.

 

[Busa45]

I have the same error, about 8-9% on my Busa. My previous Gixxer was about 7-8% off. I'm more concerned with the odometer error (reading higher than actual) than the speedo. I'm waiting on feedback from the group on Speedohealer versus Yellow Box.

 

[Heavy Metal]

Busa45, I hear their both good. Comes down to preference, Yellow Box has better instructions from my understanding.

 

[itstnee]

50 MPH when speedo says 60, but I went to a 16 tooth from a 17 tooth gear. Didn't try before change

 

[vvv692]

I've installed speedohealer (changed gauges from 185 mph to 220 mph).

It's really easy to use.

Further info:

www.speedohealer.com