Speedo is a big fat liar

2011 WR450, Recently the speedo started to read about 70% too high.  Consistantly, every time I ride, for the full ride.   Anybody know how to tell the speedo that I have a 21" front wheel and not a 12"?  fwiw the bike has a new battery and that did not cause or fix it.  Got to be a setting is off.

It's in the manual.

You probably inadvertently switched it from MPH to KPH. Go back in and reset it back to read in MPH.

Bingo!

I had it on KPH,  Did make me feel real fast when I was bombing the single track at 80+. 

It's in the manual.

 

An extraordinarily useless response.  Particularly since the wheel size calibration isn't discussed therein, as is implied, so it's not only useless, it's wrong.  When someone has nothing to say, it's usually better to just say that. 

 

OP: If you are missing the manual, here's a link: http://api.viglink.com/api/click?format=go&jsonp=vglnk_14237819556356&key=fd4d0c8927dbf2331e83bbda32ac7c21&libId=d808dceb-e211-49c0-984c-8296c2b9a7bc&loc=http%3A%2F%2Fwww.thumpertalk.com%2Ftopic%2F378677-common-threads-look-here-1st-mods-maintenance-common-issues-and-faqs%2F&v=1&out=http%3A%2F%2Fwww.yamaha-motor.eu%2Feu%2Fservices%2Fowner-manuals%2Findex.aspx&title=Common%20Threads%3A%20Look%20here%201st!%20Mods%2C%20Maintenance%2C%20Common%20Issues%20and%20FAQ%27s%20-%20YZ%20400%2F426%2F450%20-%20ThumperTalk&txt=http%3A%2F%2Fwww.yamaha-mo...uals%2Findex.aspx

 

The multi-function display info is in section 1 on page 1-13 and onward.  Setting Km/H vs. miles is on the first of these pages.   Probably exactly what the problem is. 

An extraordinarily useless response.  Particularly since the wheel size calibration isn't discussed therein, as is implied, so it's not only useless, it's wrong.  When someone has nothing to say, it's usually better to just say that. 

 

OP: If you are missing the manual, here's a link: http://api.viglink.com/api/click?format=go&jsonp=vglnk_14237819556356&key=fd4d0c8927dbf2331e83bbda32ac7c21&libId=d808dceb-e211-49c0-984c-8296c2b9a7bc&loc=http%3A%2F%2Fwww.thumpertalk.com%2Ftopic%2F378677-common-threads-look-here-1st-mods-maintenance-common-issues-and-faqs%2F&v=1&out=http%3A%2F%2Fwww.yamaha-motor.eu%2Feu%2Fservices%2Fowner-manuals%2Findex.aspx&title=Common%20Threads%3A%20Look%20here%201st!%20Mods%2C%20Maintenance%2C%20Common%20Issues%20and%20FAQ%27s%20-%20YZ%20400%2F426%2F450%20-%20ThumperTalk&txt=http%3A%2F%2Fwww.yamaha-mo...uals%2Findex.aspx

 

The multi-function display info is in section 1 on page 1-13 and onward.  Setting Km/H vs. miles is on the first of these pages.   Probably exactly what the problem is. 

 

But I DID have something to say, and that is, to go to the manual, so you can re-set up your odometer correctly.

 

You are mean

But I DID have something to say, and that is, to go to the manual, so you can re-set up your odometer correctly.

 

You are mean

You must be on the bad behavior list!! :ride:

I had the same issue and it had nothing to do with KPH vs MPH.  There is a calibration procedure for the speedometer.  I found it in an adventure bike forum.  If you have not resolved this yet, I will see if I can remember how to do this.  I wound up setting mine to 100 percent and verified it with a gps. 

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