speedometer is off by 10%

[Donk]

Speedo error seems to vary between different bikes and manufacturers. I am forgetting about cars out although I imagine they are the same. From my own experience with different bikes there is this.

Honda ST1300 out by over 10%
Harley Road King out by 3%
Tiger 1050 out by 3-4% corrected with 19 tooth front sprocket
Tiger Explorer haven't checked it yet but I'm sure its very optimistic 5% anyway
Harley Road King Police Dead nuts accurate!

They know what their doing boys! Easiest way for a manufacturer to make a bike go fast is to make the speedo read fast and the regulations encourage them to do so.

 

[Don in Lodi]

But on the Tiger if it's the 1050 a 19 tooth primary sprocket will adjust that.

I have no idea how changing the drive ratio will change what the speedo reads... :question:

 

[Donk]

Its easy. On the Tiger 1050 the speedo sensor is on the countershaft. Put a bigger countershaft sprocket on and the rear tire turns faster for each revolution of the countershaft(bike goes faster at same engine rpm) and that corrects out the speedo error. It just so happens that on the Triumph Tiger 1050 the percent of speedo error is the same as speed gain of a 1 tooth larger front sprocket AND the bike is happier on the highway with the higher gearing. Does that explain it?

 

[Don in Lodi]

That's all I needed, where the sensor is. Cars run their sensors on the trans output shaft, why not bikes.

 

[dandil726]

I think Yamaha is off more than others. My Yamaha Snowmobile was off 7 mph. My s10 is off by 5mph.

 

[terryth]

Probably not going to happen without re-engineering or replacing the whole system

ok, i searched on speedo, and I read through FOUR pages of this.

mine does not work, govt regulation, blah blah

and yet not a SINGLE answer that says "I have fixed this, the speedo AND odo are correct"

the Best assessment I see is speedo healer, but that MAY eff the odo.

Does ANYONE have a real and definitive answer on how to fix the speedo, and not jack up the ODO?

 

[fredz43]

Easiest way to correct the speedo is the trade for a 2014. Several owners report they are very accurate on the new model.

 

[Donk]

Another good reason to part with my hard earned money for the '14. I like that bike more every day and I haven't even picked it up yet!

 

[Mellow]

Easiest way to correct the speedo is the trade for a 2014. Several owners report they are very accurate on the new model.

I'm quite pleased with Yamaha on that point... My 2014 is only 1-2 mph off at any speed based on my gps.

 

[Donk]

Mellow, that's good info. Have you had any of the stalling issue that I'm reading about? Pick up my bike in a couple of weeks are am starting to wonder what to expect.

 

[Mellow]

Mellow, that's good info. Have you had any of the stalling issue that I'm reading about? Pick up my bike in a couple of weeks are am starting to wonder what to expect.

No sir - I did stall it leaving the dealership but that was just being unfamiliar with the bike. I typically downshift and engine-brake when I come to a stop but I've tried just pulling in the clutch as others have described the issue and I haven't been able to make it happen. I have a STD model. The 2012 I had never had a stalling issue either unless it was my fault coming off a stop.

The good news is most don't seem to have the problem and for those that do, most of them report it goes away with time/miles. Hopefully, those with the extreme cases will find a cause and something we all may need to check as a maint item in the future or it's just a factory setup issue.

I have about 1300 miles on mine so far, planning to put another 2k on it next week. I like the changes Yamaha did but I was really lusting after the White 2013 w/accessories that Niehaus shows on their site - was very close to renting a car and driving up there for it.

 

[Brick]

My 2012 Tenere was off 4 to 5 mph at road speed all the time. This new 2014 ES Tenere is off 1 - 1.5mph all the time. Well I look at it this way... It's closer to being right! Now the temp gage is just like the last bike 4 to 5 degrees too high all the time.


Brick

 

[Kelvininin]

my 12 is off by5 mph at highway speed, I don't really care, I use my GPS for speed indication.

What I do want is electronic cruise control.

 

[RED CAT]

Think you may be right about the 14 speedo. Took the 14 out for a demo yesterday and noticed at 3000 rpm and speedo reads about 92kph. On my 2012 at 3000, mine reads 97kph. So maybe it is more accurate now. Originally thought maybe they had changed the gearing. Accurate speedo makes more sense.

 

[ExTriumphExp]

The simple answer is that all vehicles CAN be out by as much as 10%, I used to work for the instrument manufacturer VDO. I cant remember all the various legal gumph but the only difference between UK, EU & ROW ( rest of world) is the silk Screen or pad printed facia showing the various warning lights speed (kmh or mph), this obviously changes with the spec for cars. Al of the internals, body, electronics are exactly the same. Due to tolerance there might be the odd & I mean odd chance that you could get nicked for speading due to speedo error this is partly the reason why Instrument manufacturers have always gone for the plus side of error if that makes sense so as to prevent accidental speeding. Not good for brand image! but if I remember correctly there is some legal gumhp too. Hope this helps

::003::

 

[barkingllizard]

I think any argument or justification [like some of the comments above] for manufacturers building in an error is horse poop...
The speedo should read as close to actual speed as possible, the caveat being tire wear...
I believe most automobile manufacturers have solved this issue, even on my Jeep the speed reads dead on compared to the GPS...
That said, ever since I have had a GPS on my motorcycles I have known exactly how fast I have been riding, usually 10 to 12 percent over the posted limit,
which seems to generally be okay with most law enforcement agencies, while keeping in mind several of the 'Don't Be Stupid Rules'...

All motorcycle manufacturers are doing an incredible disservice to their customers by not providing accurate and reliable information.....

Complaining, debating and whining will not solve this issue, get yourself a GPS or a SpeedoHealer AND RIDE MORE.....

 

[RED CAT]

Just bought a 2014 S10 ES and notice a difference in the speedo to tach readings compared to the 2012 I had. Don't have a GPS but was wondering if maybe the speedo reading on the new bike is more accurate. Pretty sure there is no difference in tranny gears.

 

[fredz43]

Just bought a 2014 S10 ES and notice a difference in the speedo to tach readings compared to the 2012 I had. Don't have a GPS but was wondering if maybe the speedo reading on the new bike is more accurate. Pretty sure there is no difference in tranny gears.

Yes, the speedo error has been significantly reduced on the 14. Mine is only 1 mph fast at 70 mph according to my Zumo.

 

[ExTriumphExp]

I think any argument or justification [like some of the comments above] for manufacturers building in an error is horse poop...
The speedo should read as close to actual speed as possible, the caveat being tire wear...
I believe most automobile manufacturers have solved this issue, even on my Jeep the speed reads dead on compared to the GPS...
That said, ever since I have had a GPS on my motorcycles I have known exactly how fast I have been riding, usually 10 to 12 percent over the posted limit,
which seems to generally be okay with most law enforcement agencies, while keeping in mind several of the 'Don't Be Stupid Rules'...

All motorcycle manufacturers are doing an incredible disservice to their customers by not providing accurate and reliable information.....

Complaining, debating and whining will not solve this issue, get yourself a GPS or a SpeedoHealer AND RIDE MORE.....

[/i]
I suggest you wind yer neck in Lizard & stop making personal attacks on people accusing them of being bull shit merchants when they probably have more idea than you do on said subject matter.
Read my post carefully, I wasnt complaining about defective speedo merely giving an explanation as to why there's variation. Variation comes from something called manufacturing tolerances & process deviation. I used the phrase "used to work" i.e. in the past tense, manufacturing processes have probably improved in that time, the post following your indicates that the 14 model is better ie less variation. Its called progress. Just because you dont understand or dont believe the information, it doesnt mean it Bull shit. I normally only accuse someone of being a Bullshitter when I have factual evidence proving they are full of it. I know everyone is entitled to there opinion but normal sane people dont go around calling people bullshitters or being full of horse shit if they have a different opinion.

Like you say ride more & stop looking for post on here to have a pop at when you havent a clue what your talking about.

::003::

 

[MikeShell]

I have a '13 model.
I've checked my speedo vs GPS.
ST Speedo 70 -- GPS 65
ST Speedo 75 -- GPS 69
ST Speedo 82 -- GPS 75

My two cents...I get similar numbers with my ST1300.

Mike