January 4th, 2012, 04:51 PM | #1 |
ninjette.org member
Name: Nick
Location: Tucson
Join Date: May 2010 Motorcycle(s): 2009 Ninja 250R Posts: 20
|
Tachometer Accuracy
We calibrated my tachometer on a fairly new Dynojet Dynometer yesterday and found it to read about 10% high. One cannot calibrate the speedometer on a dyno as the drive is off the front wheel; but after riding it and noting speed vs tach readings and calculating what it should read using Gearing Commander figures, it appears that the speedo is about right to within about 1 or 2 mph.
Both these results surprise me; I thought the tach would be more accurate and the speedo would over-read by about 6 or 7%. Has anyone else tried to calibrate these instruments? I would be very interested in their results. |
|
January 4th, 2012, 04:56 PM | #2 |
wat
Name: wat
Location: tustin/long beach
Join Date: Sep 2009 Motorcycle(s): wat Posts: Too much.
Blog Entries: 5
MOTM - Oct '12, Feb '14
|
my tach accuracy varies wildly depending on ambient temperature. you would probably find better results from an aftermarket setup?
__________________________________________________
|
|
January 4th, 2012, 09:10 PM | #3 |
ninjette.org member
Name: Nick
Location: Tucson
Join Date: May 2010 Motorcycle(s): 2009 Ninja 250R Posts: 20
|
Alex, I noticed that too; it starts out about correct and then over-reads after about 2 miles. But idle is at 1,500rpm indicated anytime!
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
Tachometer wiring help | Eagle981 | 1986 - 2007 Ninja 250R Tech Talk | 16 | December 24th, 2012 10:43 PM |
Gauge Accuracy | geeker | 2008 - 2012 Ninja 250R Tech Talk | 6 | September 6th, 2012 07:18 PM |
light went out on tachometer... | LoneRonin | 2008 - 2012 Ninja 250R Tech Talk | 4 | June 16th, 2012 09:36 PM |
Inaccurate Tachometer | ahoy11 | 2008 - 2012 Ninja 250R Tech Talk | 14 | May 2nd, 2012 08:43 AM |
09 ninja tachometer | kyle98927 | 2008 - 2012 Ninja 250R Tech Talk | 9 | June 30th, 2009 10:12 AM |
|
|