Home

Go Back   .: XT660.com - The #1 XT660 Resource :. > XT660 Tech Section > General Help Section
FAQ Calendar Search Today's Posts Mark Forums Read Main site

Google

General Help Section Members help each other here with tips and tricks about mods / maintenance and servicing based on their own experiences

Reply
 
Thread Tools Display Modes
  # 1  
Old 01-11-14, 17:41
XT Donkey86 XT Donkey86 is offline
Expert XT-Moto
 
Join Date: Dec 2013
Location: Belfast
Posts: 192
XT Donkey86 is on a distinguished road
How can you tell if your speed is right ?

Hey

How can you tell if your speedo is giving out the speed on the XTX

Was heading home from work stuck it in to first give it a slight Rev nothing major and it seemed to send the speedo read out up then bck down :S ?

Cheers in advance
  # 2  
Old 01-11-14, 18:38
Pleiades Pleiades is offline
XT-Moto SuperStar
 
Join Date: Aug 2010
Location: North Norfolk
Posts: 5,320
Pleiades is on a distinguished road
To check speedo accuracy you could...

Use a GPS for comparison?
Follow a mate in a car/on a bike?
Time yourself over a measured distance at a constant indicated speed?
Stick your bike on a rolling road?
Find your local community speedwatch's SAM and ride through it?
Go too fast through a speed camera?

Or, do you mean, how do you check the speed sensor output in the diagnostic mode?
  # 3  
Old 01-11-14, 18:40
XT Donkey86 XT Donkey86 is offline
Expert XT-Moto
 
Join Date: Dec 2013
Location: Belfast
Posts: 192
XT Donkey86 is on a distinguished road
Lol must try all of the above ...... Also how do Ya do that last one ?
  # 4  
Old 01-11-14, 18:52
Pleiades Pleiades is offline
XT-Moto SuperStar
 
Join Date: Aug 2010
Location: North Norfolk
Posts: 5,320
Pleiades is on a distinguished road
You need to run diagnostic test D07 (road speed sensor).

Enter the diagnostic mode:

Switch off Engine Run switch & switch OFF key ignition
Press both SELECT & RESET buttons and then switch ON key ignition
Keep SELECT & RESET buttons pressed for at least 8 seconds
Display then changes to "DIAG"
Release SELECT & RESET buttons
Select DIAG (not CO) by pressing again both SELECT & RESET buttons.
Select D07 by pressing SELECT (up) or RESET (down).

The D07 test display should read 000 and then as you spin the rear wheel it should count the pulses sent to the ECU and display a running total. Basically, if it counts uniformly upwards, you're good to go.

Just bear in mind, the speedo on all XTs with stock gear ratios and tyre sizes is between 8 and 10% optimistic.

BTW - The speed camera test in my first post isn't as good as the others because you'll have to wait a week to ten days for the results!
  # 5  
Old 01-11-14, 19:30
XT Donkey86 XT Donkey86 is offline
Expert XT-Moto
 
Join Date: Dec 2013
Location: Belfast
Posts: 192
XT Donkey86 is on a distinguished road
Did the diag test and it started at 0 and went up ..... Would I be rite in saying that the speedo reads of the crank not off the wheels ?
  # 6  
Old 01-11-14, 19:43
Pleiades Pleiades is offline
XT-Moto SuperStar
 
Join Date: Aug 2010
Location: North Norfolk
Posts: 5,320
Pleiades is on a distinguished road
From the gearbox.

The reason your speed suddenly went up and then settled... Could it be you spun the rear wheel momentarily?
  # 7  
Old 01-11-14, 19:51
XT Donkey86 XT Donkey86 is offline
Expert XT-Moto
 
Join Date: Dec 2013
Location: Belfast
Posts: 192
XT Donkey86 is on a distinguished road
Was at a stand still when it happened but the clutch was just slightly off the bit point
  # 8  
Old 02-11-14, 10:30
lolgeoff lolgeoff is offline
SemiPro XT-Moto
 
Join Date: Nov 2009
Location: Hartley
Posts: 49
lolgeoff is on a distinguished road
What are the teeth on the front sprocket like?
  # 9  
Old 02-11-14, 11:59
XT Donkey86 XT Donkey86 is offline
Expert XT-Moto
 
Join Date: Dec 2013
Location: Belfast
Posts: 192
XT Donkey86 is on a distinguished road
They are still gd only fitted in July
  # 10  
Old 05-11-14, 17:08
XT Donkey86 XT Donkey86 is offline
Expert XT-Moto
 
Join Date: Dec 2013
Location: Belfast
Posts: 192
XT Donkey86 is on a distinguished road
I read in the Hayes manual that the diag should count up to 199 then go bck to zero ? Is that rite ?
Sponsored Links
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT +1. The time now is 23:28.
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2019, vBulletin Solutions Inc.

  XT660         Archive   Main site


Footer
vBSkinworks Top