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Discussion Starter #1
Hello all,

I am not sure if my trip meter is working properly. It seems to be calculating less miles than the odometer. Like if the odometer shows I have traveled 10 miles the trip meter will not show 10 miles, but it would show about half of the actual traveled distance. Does it calculate half the distance the odometer does? Is this how it's supposed to work?
 

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Dr. Vulcanstein
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No, that would be crazy, lol. It's suppose to be in sync with the odometer.
 

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2000 VN 750 Senior Member
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Hello all,

I am not sure if my trip meter is working properly. It seems to be calculating less miles than the odometer. Like if the odometer shows I have traveled 10 miles the trip meter will not show 10 miles, but it would show about half of the actual traveled distance. Does it calculate half the distance the odometer does? Is this how it's supposed to work?
One mile traveled is one mile traveled whether it is on the odometer or the trip meter. You may have a broken gear or a gear may be out of place inside the speedometer. Did the bike get dropped that you know of? Do you know which is accurate? Your choice is to take it all apart if you can (or even dare) to repair it, switch out your speedometer for another one or just use the most accurate meter for your calculations of fuel mileage, remaining miles left on your tank of fuel or following certain directions. Switching can be a future problem as you may only find ones that have higher mileage than your bike presently has and that may be a problem when you want to sell the bike. You may also get lucky and find one that has less mileage than your present unit which could be to your advantage. Maybe someone here has taken theirs apart before and can offer advice or had a similar experience and knows what the problem is. Good luck.
 

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Discussion Starter #4
Yea I thought it would be crazy too if it worked like that but it just happens to work like that (about half distance than on the odometer), I don't know why. But I am not worried about it because if i wanted to know the distance I have traveled I just have to do basic math with the odometer. But I just asked to see what suggestions I would get and of course got some helpful ones.
 

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Discussion Starter #5
And as far as I know the bike has never been dropped. Previous owner claimed that it was never dropped and there is no sign of that on the bike either. But I know the odometer is accurate because I have compared distance traveled on my GPS and they both match.
 

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Dr. Vulcanstein
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The only thing I can think of is the tripometer gear may have a few teeth broke and it skips?
 

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Premium Member
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If it is doing what you said, it is broken, and there is no way to fix it. You have to replace the whole thing. Wouldn't be worth it to me just for a trip meter. I have also found both the odometer and speedometer to be off compared to GPS. The speedometer is way off, almost 5 mph optimistic at an indicated 70 mph. Odometer is also off, but not by that much. I have never seen a speedometer on any vehicle that didn't show faster than you are really going, unless it has been regeared, or in the case of a motorcycle, a larger diameter front tire was used. The speedometer on my truck was way off, when I put bigger tires on the back, it is almost perfect now. This is such a common thing it has to be done on purpose.

Oh, and on those "certified" Harley-Davidson speedometers, they're off as well.
 

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The internals are all plastic gears and the teeth can easily become rounded and skip.......I am actually surprised this issue is not more common to be honest.

As mentioned, they are not repairable.

If it's any consolation to you...mine doesn't track either, but that is because of my widshield....it forces the clutch cable to rub the knob and roll it when I make left turns. :doh:
 

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..have a vulcan good day!
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Previously, I have thought with much dis-assembly/labor time, a little graphite or similar lube would avoid this problem.

After replacing a couple Speedo Cables, I replaced the whole Speedo unit.

...another factory spline-like issue ?

....just sayin'

:smiley_th
 

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2000 VN 750 Senior Member
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And as far as I know the bike has never been dropped. Previous owner claimed that it was never dropped and there is no sign of that on the bike either. But I know the odometer is accurate because I have compared distance traveled on my GPS and they both match.
Wow! Be careful how loud you say that here because there are many that will argue that it can't be accurate and some others will argue that everything is inaccurate which makes me wonder what they used for comparison checking since there is nothing accurate to compare it to. lol It seems that you can not change the gears inside from what I am reading here but if you do obtain a second unit it may just be fun to open your old one to look it over yourself and find out what the problem is/was. Good luck.
 

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While I don't believe anything is completely accurate, I do believe that GPS is about the most accurate thing available, and far more accurate than any mechanical speedometer or odometer.
 

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FREEBIRDS MC CENTRAL NY
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While I don't believe anything is completely accurate, I do believe that GPS is about the most accurate thing available, and far more accurate than any mechanical speedometer or odometer.
the only thing i don't like about gps is i feel like someone is watching me.
 

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FREEBIRDS MC CENTRAL NY
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Super Moderator
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the only thing i don't like about gps is i feel like someone is watching me.

We are.



The odometer on the bike is in fact accurate. (Within reason) the speedometer isn't. Not sure why.
A GPS is only accurate on flat level ground, as it tracks your movement from one coordinate to another by satellite. (Going up or down a hill covers more distance than what's seen from above)

But in the grand scheme of things, they are all just useless numbers provided for your reference, like time. Unfortunately .....the cop that pulls you over begs to differ.
 

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Linkmeister Supreme
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We are.



The odometer on the bike is in fact accurate. (Within reason) the speedometer isn't. Not sure why.
What KM says seems to be the general consensus on this board when running a stock sized front tire, ie. 100/90-19.

It is not a unanimous opinion though. One member sent me a PM some time ago and says his speedo is accurate with the stock 100/90-19 tire. :confused: I cannot explain why he gets different results.

According to most who have checked, changing out to a 110/90-19 makes the speedo more accurate and the odometer less accurate.

The flat prairie farm land here in Alberta is surveyed into rectangular blocks 1 mile by 2 miles, with roads separating the sections, so it is pretty easy to check the accuracy of the odometer on many highways, even without a gps unit. I have not checked mine yet though. I will have to remember to do it next summer.
 

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Discussion Starter #17
Wow I see now I am not the only one with the same issue. It is not a problem to me but just wanted to hear what everyone had to say about it. But, yes, it would be interesting to open the whole thing apart and see what is wrong. But it's not worth the money or time. And I do agree that the speedometer could be inaccurate because in my bike I feel it shows a faster speed than the speed I feel I'm actually going.
 

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..have a vulcan good day!
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Wow I see now I am not the only one with the same issue. It is not a problem to me but just wanted to hear what everyone had to say about it. But, yes, it would be interesting to open the whole thing apart and see what is wrong. But it's not worth the money or time. And I do agree that the speedometer could be inaccurate because in my bike I feel it shows a faster speed than the speed I feel I'm actually going.
Previous threads will read the opinion is 9 -10 %

:smiley_th
 

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I see speedometers and odometers the same as heating/cooling thermostats in your house. The are not totally accurate, but they are accurate enough to serve their purpose. The speedometer (digital electronic mess) never worked on my former '85 Goldwing. But the tachometer did, and it had a digital gear indicator that also worked. After riding for a while with a cheap Garmin eTrex velcroed to the fairing, I learned to figure speed based on the gear I was in and engine rpm.
 
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