Speedometer off, Star 1300 - Star Motorcycle Forums: Star Raider, V-Max, V-Star, Road-Star Forum
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post #1 of 19 (permalink) Old 11-08-2010, 12:14 AM Thread Starter
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Cool Speedometer off, Star 1300

With my GPS it is obvious the speedometer is reading 5 to 6 mph high. Is there a screw to calibrate or a black box I can install to bring speed closer to being accurate?
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post #2 of 19 (permalink) Old 11-08-2010, 09:43 AM
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http://www.tobefast.com/speedo-heale...i-pr-4447.html

This item or one like it is what you are looking for.

GW
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post #3 of 19 (permalink) Old 11-09-2010, 07:24 PM
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My 950 is the same way. It is about 10 % off. The dealer said I just need to live with it. Folks on this forum said it is the norm. It still bothers me. I now have almost 8k miles on it according to the odo. That means that it has only 7200 real miles. If I go to sell it, how do I explain that to a potential new buyer and have them believe me. I also think that I am getting shorted on warranty.
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post #4 of 19 (permalink) Old 11-09-2010, 09:22 PM
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Odometer

I wonder if you ever checked the odometer with the mile posts on an Interstate to see if the odometer is off the same? Speedometer is a different movement even if they have the same source.

Nearly all speedometers are off two or three MPH at 60 MPH. Six MPH seems like a lot. But some of my buddies have had near that.

Dave
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post #5 of 19 (permalink) Old 11-09-2010, 09:29 PM
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They are not necessarily tied together the mileage comes off of a hall effect sensor that sends pulses these are counted and a certain number of pulses yields a mile. The speed is a movement dependent on the resultant voltage from how close the pulses are together and this voltage drives the needle around. If this needle isn't calibrated correctly you get the situation where your mileage is right and your speed is indicated incorrectly.

GW
2005 1100 Custom
Speedster Slashdowns
ORKed 5/16" Lines
PODs K&N RU-600s W/PCV
PCS XXX/2 cams
Jetted & PMS Tweaked 20.0/152.5 3.0 turns
AIS Removed/Plugged
Wimmer Machine Custom Oil Cooler & Stash Tube
Pro-1 Tach
Dyna 3000 Step 5/ 6500 redline
TPS Connected
6" Fwd Control Extension W/Boards F&R
Memphis Shades Bullet Fairing
Progressive 465 rear
Progressive Springs and GVE front

10,000 Monkeys throwing crap at the glass and this one thinks he's Picasso...
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post #6 of 19 (permalink) Old 11-09-2010, 10:23 PM
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Quote:
Originally Posted by Fulltilt1 View Post
They are not necessarily tied together the mileage comes off of a hall effect sensor that sends pulses these are counted and a certain number of pulses yields a mile. The speed is a movement dependent on the resultant voltage from how close the pulses are together and this voltage drives the needle around. If this needle isn't calibrated correctly you get the situation where your mileage is right and your speed is indicated incorrectly.
You know the Harley Davidson dealership claims they are the only one's with accurate speedometers.
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post #7 of 19 (permalink) Old 11-10-2010, 02:38 AM
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Originally Posted by martymcfly View Post
If I go to sell it, how do I explain that to a potential new buyer and have them believe me.
uh, don't. don't sell it and don't tell others that the speedo is off. it's not a defect on the bike and seems to be the norm across the industry. i have a 950 as well and actually like that my actual speed is lower so i'm not in as much danger of getting pulled over for speeding.

on a related note, i was averaging about 90mph (on the speedo) through Louisiana, Mississippi, and Alabama on my recent rode trip and passed numerous cops at or close to this speed and didn't get a single chaser. even at a discounted speed, i was still doing well over the speed limit. cops just don't tend to want to pull over cruisers i guess.
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post #8 of 19 (permalink) Old 11-10-2010, 08:11 AM Thread Starter
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Speed-O-Healer

Thanks for the suggestion, going to try one
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post #9 of 19 (permalink) Old 11-10-2010, 09:39 AM
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Quote:
Originally Posted by Fulltilt1 View Post
They are not necessarily tied together the mileage comes off of a hall effect sensor that sends pulses these are counted and a certain number of pulses yields a mile. The speed is a movement dependent on the resultant voltage from how close the pulses are together and this voltage drives the needle around. If this needle isn't calibrated correctly you get the situation where your mileage is right and your speed is indicated incorrectly.
That would be an interesting thing to check... Need to get someone to test it with GPS and see if that is the case. It would also be interesting to see if and how the odo is effected if you install a speedohealer or the like.

I have a speedohealer on my R1 but I'm too lazy to do it
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post #10 of 19 (permalink) Old 11-10-2010, 12:58 PM
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My speedometer reads high also (according to the handy-dandy "your speed is" signs through town), but I thought I checked my odometer once and it was pretty accurate. Around here most of our roads are straight north/south and east/west, separated by an even mile (which makes for some boring rides). Maybe I'll check again on the ride home from work today..


2002 V-Star 1100 Silverado
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