Road Star Forum
Welcome, Guest
Please Login or Register.    Lost Password?
Re:Speedometer Accuracy (1 viewing) (1) Guest
Go to bottom Post Reply Favoured: 0
TOPIC: Re:Speedometer Accuracy
#232235
Frank_W (User)
Riding The Filthy Sow!
Platinum Boarder
Posts: 3510
graphgraph
User Offline Click here to see the profile of this user
Gender: Male Location: Tennessee Birthdate: 1969-04-13
Re:Speedometer Accuracy 2 Years, 3 Months ago  
Yeah... At lower speeds, my '02 is about 3mph slow, and the discrepancy widens with increase in speed.

If my speedometer reads 35 mph, I'm actually doing about 27 mph. If my speedometer reads 80, I'm actually doing about 75.

Mostly, I pace traffic, and if I'm out on the roads by myself, my general rule is 8-10 mph over the speed limit. This rule seems to keep Johnny Law off my six, and keeps the cagers from running me over, too.
 
Logged Logged  
 
Last Edit: 2009/10/21 07:50 By Frank_W.
 
My Music

Whatever...
  The administrator has disabled public write access.
#232260
Road.Hawg (User)
Fresh Boarder
Posts: 54
graphgraph
User Offline Click here to see the profile of this user
Re:Speedometer Accuracy 2 Years, 3 Months ago  
I have a 2007 Silverado, and just put a GPS unit on it. Speedo is high by abt 4-5 MPH at 70. I guess when I put those bigger rear tire, that should cure that

RH
 
Logged Logged  
  The administrator has disabled public write access.
#232289
smhowse (Moderator)
Book em Dan-o!
Moderator
Posts: 3354
graphgraph
User Offline Click here to see the profile of this user
Gender: Male Location: Castaic, CA Birthdate: 1974-08-24
Re:Speedometer Accuracy 2 Years, 3 Months ago  
I got the Speedo Healer for 2 reasons 1st it records your fastest speed on the digital readout for those times you really wanna open it up and it corrects the speed. I'm about 1mph off now and was 5mph off. I could get it perfect but, didn't feel like messing with it.
I got the healer so I knew how fast I was really going, too many times I would be ride captain and crusin at 65-70mph and everyone would be complaining I was going way too slow

Steven
 
Logged Logged  
 
  The administrator has disabled public write access.
#232331
Darn (User)
Don't forget, Never forget.
Platinum Boarder
Posts: 6914
graphgraph
User Offline Click here to see the profile of this user
Gender: Male My Castle Care dparnoldi@new.rr.com Location: Green Bay, Wisconsin Birthdate: 1958-11-16
Re:Speedometer Accuracy 2 Years, 3 Months ago  
I started a thread almost a year ago about this, and this is what I came up with...... The MFG purposely makes the speedo off by 7-10%, however the ODO is almost accurate, only about 1% off. I measured mine with GPS and after exactly 10 miles on GPS at 65 mph I actually traveled 9.9 miles on the ODO at 72mph according to the speedo.

I had heard that it was to slow bikes down on the hi-ways in an effort to reduce serious accidents caused by speeding.

Do a search for GPS vs Speedo and you can read the entire thread.
 
Logged Logged  
 




Free, personalized tra
  The administrator has disabled public write access.
#232345
PapaTom (Moderator)
I said 4 quarts.
Moderator
Posts: 3178
graphgraph
User Offline Click here to see the profile of this user
Gender: Male Location: Washington/St. George, UT Birthdate: 1950-11-17
Re:Speedometer Accuracy 2 Years, 3 Months ago  
That's good research Darn. Seems like Musky (or Doc or Gram) mentioned the accuracy of the ODO a year or so ago as well. Maybe Yami added their own version of the "healer" in the ODO circuitry ('course they didn't, but it sounded good).
 
Logged Logged  
 

FREE SPIRIT 2007 Silverado
  The administrator has disabled public write access.
#232387
Darn (User)
Don't forget, Never forget.
Platinum Boarder
Posts: 6914
graphgraph
User Offline Click here to see the profile of this user
Gender: Male My Castle Care dparnoldi@new.rr.com Location: Green Bay, Wisconsin Birthdate: 1958-11-16
Re:Speedometer Accuracy 2 Years, 3 Months ago  
PapaTom wrote:
That's good research Darn. Seems like Musky (or Doc or Gram) mentioned the accuracy of the ODO a year or so ago as well. Maybe Yami added their own version of the "healer" in the ODO circuitry ('course they didn't, but it sounded good).

Hey any reason to go for a ride
 
Logged Logged  
 




Free, personalized tra
  The administrator has disabled public write access.
#285689
Wpowpo (User)
Fresh Boarder
Posts: 15
graphgraph
User Offline Click here to see the profile of this user
Re:Speedometer Accuracy 1 Year, 8 Months ago  
Radar trialers are horribly inaccurate. They can't write a ticket off of one and I have well over a million miles in a truck with a garmin at my side to prove they are off. In my 10 years on the road I have seen 1 radar unit that was spot on.
 
Logged Logged  
  The administrator has disabled public write access.
#285709
davej (User)
Platinum Boarder
Posts: 3879
graphgraph
User Online Now Click here to see the profile of this user
Gender: Male Location: westland, michigan Birthdate: 1957-00-00
Re:Speedometer Accuracy 1 Year, 8 Months ago  
I want to know if this inaccuracy is only on the older bikes. And how it was determined that they are wrong. Is it "only" based on a GPS?
I checked mine against my buddys Roadglide and it was spot on with his. I also checked it the same day against a loaner that he got from the dealer and again spot on. We checked them @ 40/50/60/70 and we checked them a few times at the higher speeds. Every time they were exactly the same.
 
Logged Logged  
 
dave
  The administrator has disabled public write access.
#285784
workharddieproud (User)
"HALF GUILTY, HALF INSANE"
Gold Boarder
Posts: 806
graphgraph
User Offline Click here to see the profile of this user
Gender: Male Location: MORELAND, KY Birthdate: 1970-08-13
Re:Speedometer Accuracy 1 Year, 8 Months ago  
i have asked a parked cop to check me with his radar, that works
 
Logged Logged  
  The administrator has disabled public write access.
#285786
davej (User)
Platinum Boarder
Posts: 3879
graphgraph
User Online Now Click here to see the profile of this user
Gender: Male Location: westland, michigan Birthdate: 1957-00-00
Re:Speedometer Accuracy 1 Year, 8 Months ago  
workharddieproud wrote:
i have asked a parked cop to check me with his radar, that works

And what were the results?
 
Logged Logged  
 
dave
  The administrator has disabled public write access.
Go to top Post Reply
Powered by FireBoardget the latest posts directly to your desktop
...................................................................... ...................................................................... ...................................................................... ...................................................................... ...................................................................... ...................................................................... ...................................................................... ...................................................................... ...................................................................... -->
New Forum Posts




The Road Star Clinic is a collaborative community of riders who archive and publish user contributed technical data about Yamaha Road Star motorcycles.

We also sponsor the creation and support of other community websites similar to our own. Inquiries about availability of a website for your community can be submitted to us via any "Contact Us" option on the Clinic.

Copyright 2003-2007 Road Star Clinic and its respective authors. Road Star Clinic is sponsored by the folks at MLSHomeQuest.com.