• Required reading for all forum users!!!

    Welcome!
    Register to access the full functionality of the GSResources forum. Until you register and activate your account you will not have full forum access, nor will you be able to post or reply to messages.

    A note to new registrants...
    All new forum registrations must be activated via email before you have full access to the forum.

    A Special Note about Email accounts!
    DO NOT SIGN UP USING hotmail, outlook, gmx, sbcglobal, att, bellsouth or email.com. They delete our forum signup emails.

    A note to old forum members...
    I receive numerous requests from people who can no longer log in because their accounts were deleted. As mentioned in the forum FAQ, user accounts are deleted if you haven't logged in for the past 6 months. If you can't log in, then create a new forum account. If you don't get an error message, then check your email account for an activation message. If you get a message stating that the email address is already in use, then your account still exists so follow the instructions in the forum FAQ for resetting your password.

    Have you forgotten your password or have a new email address? Then read the forum FAQ for details on how to reset it.

    Any email requests for "can't log in anymore" problems or "lost my password" problems will be deleted. Read the forum FAQ and follow the instructions there - that's what we have one for...

  • Returning Visitors

    If you are a returning visitor who never received your confirmation email, then odds are your email provider is blockinig emails from our server. The only thing that can be done to get around this is you will have to try creating another forum account using an email address from another domain.

    If you are a returning visitor to the forum and can't log in using your old forum name and password but used to be able to then chances are your account is deleted. Purges of the databases are done regularly. You will have to create a new forum account and you should be all set.

Is there a way to set my speedo? (not the swimsuit)

  • Thread starter Thread starter froldt
  • Start date Start date
F

froldt

Guest
My 82 GS750T seems to be running a bit fast in the speedometer. I thought that it might be, so I followed behind my girlfriend. When she got to 60 and set her cruise control, she flashed her caution lights. My speedo showed that I was running about 64ish.

Once I get her back running (the bike, Dirty Gerty, not the girlfriend), I'll test it out again, to make sure.

So is there a way to adjust/set it properly? And what is the actual way to test it, since I don't have a cop friend?
 
Dont know that speedos have any adjustment/clabartation. And they dont even come apart to get at anything other than to replace the lights.

Wonder if you have smaller than stock front tire (so has to turn faster for same speed, so reads higher)?

Other way to test/compare speedo reading is to go on interstate, go at a steady indicated 60 mph, keep one eye on mile markers and one eye on watch that can display seconds and 3rd eye on the road. 60mph = 1 mile per minute, or better yet 3 miles per 3 minutes. Or maybe someone might suggest that 90mph = 1 mile in 45 seconds:-s
 
If you're really lucky you can find one of those trailers that say "Posted speed limit 55, your speed ()" Of course, those don't always work on bikes (radar detectors failing to recognize a bike has saved my A$$ on several occasions).

If you can find out what the factory tire size was on your bike and compare it to what's on there now, it would help.

BTW, I just saw a Hot Wheels "radar gun" at Wal-Mart for $20. Claimed to be accurate to 100mph. Never got my old "Baja Breaker" up to that speed, but I thought it would be interesting to see if it would scan a bike. (MPH was listed as actual, not scale)
 
txironhead said:
If you're really lucky you can find one of those trailers that say "Posted speed limit 55, your speed ()" Of course, those don't always work on bikes (radar detectors failing to recognize a bike has saved my A$$ on several occasions).

If you can find out what the factory tire size was on your bike and compare it to what's on there now, it would help.

BTW, I just saw a Hot Wheels "radar gun" at Wal-Mart for $20. Claimed to be accurate to 100mph. Never got my old "Baja Breaker" up to that speed, but I thought it would be interesting to see if it would scan a bike. (MPH was listed as actual, not scale)
Click to expand...

I saw that also!!!!
I may just go ahead and get one for the giggles factor of zapping at people with visable radar detectors.
 
focus frenzy said:
I saw that also!!!!
I may just go ahead and get one for the giggles factor of zapping at people with visable radar detectors.
Click to expand...


Hadn't thought of that......now you've got my "evil twin" syndrome kicking in.....:twisted:
 
txironhead said:
Hadn't thought of that......now you've got my "evil twin" syndrome kicking in.....:twisted:
Click to expand...


well I did some googling and found the range is very limited and the way it functions quality detectors ignore it.

did find some info on hacking them and cranking up the power, but you could just as easaly get one of the bushnel guns at radio shack and have usable range. (up to 1/4 mile)

http://bushnellspeedster.com/
 
The Speedster would be a great way to screw with people hauling arse. There are a few on Ebay for under $70 Buy It Now.
 
I made the mistake of following a couple of FAST guys I knew once and ended in a corn field with a bruised body (and ego) and a smashed speedo. After replacing the plastic housings it sits in, it displays EXACTLY half the speed that the old girl is moving. The odo works as normal.
 
The Speedos on these Old Bikes are Notorius For Being 5-10 MPH "Optomistic". I've never heard of any way to Calibrate one. Most Folks Do what You Did to get an idea of How Optomistic their Bike is.
 
I checked mine with my GPS a while ago, and like everyone else, it's 3-4mph fast. Gives me an excuse to speed, though!
 
Well, I feel gypped. :(

I have checked my wife's 850GL against my GPS and found it to be accurate. \\:D/
Because of the way the GPS calculates speed, the speed that is displayed will vary about +/- 1 mph while trying to hold the bike speed steady. At a bike-indicated 70 mph, the GPS will show anything from about 69.1 to 70.5.

But most of you ARE right, the speedos are typically optimistic. Some say that the manufacturers did it for bragging rights (OUR bike will do 135), while others say they do it to slow us down and keep us safer (if you hold your speed to "70", you are actually doing 65). The government says that error is OK, but only if it is optimistic. Can NOT be pessimistic, where you are going faster than what is shown. My previous bike, a Kawasaki Voyager 1300 (with a digital dashboard), was off by 10-12%, which means I had to show 78 mph to do an honest 70. My current GoldWing is as accurate as my wife's 850. Have not seen either one of them off by more than 1 mph at any speed up to about 80. :shock:


.
 
A possibility...

A possibility...

...something that may help:
You can check out Bikebandit.com and get yourself a new OEM speedometer cable. I paid $16 for mine (including shipping)...over the years it appears that the factory greased line gets a little mucked up. Replacing it with a new one may improve the accuracy of your speedo! :)
 
You must log in or register to reply here.
Back
Top