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**GregS** · 09-20-2007, 07:54 AM

Speed reads from the same signal or cable speed, so would be accurate depending on the amount of error in the speedometer head. Many are off 3 to 5 percent. Your original one was probably off a similar amount.

**dvibbert** · 09-20-2007, 08:21 AM

I appreciate the info. Now I can take of my 750 Illumiglo guages and sell. Thanks again.

**The CyberPoet** · 09-20-2007, 07:52 PM

it's probably due to where you got the gauges (which model they came off of). If the old gauges were based on a Kat 600 with an expected stock 47 tooth rear, and the new ones are based on a Kat 750 with a stock 45 tooth rear, that might explain the whole difference.

Cheers,
=-= The CyberPoet

**dvibbert** · 09-20-2007, 08:54 PM

I have searched and investigated a speedohealer. Will this adjust the spped across the board. I also read where someone just figured how far off the speedo was and adjusted the needle. Are these the only two ways to adjust?

**The CyberPoet** · 09-20-2007, 10:15 PM

Yes, the speedo healer (and it's competitor, YellowBox) will both correct the speedo across the board by taking the speed input signal, manipulating it, and then feeding the corrected signal to the dash. Basically, we're talking about a "translation box" that sits inline to the existing system to correct the problem.

I have never heard of the needle adjustment (I doubt it would work on a 98+ because of how the system works -- most likely just damage the speedo). Placing a sticker over the existing speedo face with a corrected range (i.e. - instead of 90 mph being x degrees from 0 mph, it's now 10 degrees further around the sweep area) is the cheapest fix, but you have to redo it every time something in the set-up changes (tires, gear ratios, etc), while the SpeedoHealer and YellowBox systems both let you reset their percentage of change at any point if you do further mods.

Cheers,
=-= The CyberPoet

**BarMatt80** · 09-21-2007, 02:41 AM

not trying to hack, but where to purchase one of these speedo healers, etc?

**The CyberPoet** · 09-21-2007, 02:44 AM

Not sure, I've never tried to buy one. My guess is a google search would net you that info... I know I put a link to each of the two on my sprockets web pages...

Page not found - HealTech Electronics Ltd.

http://www.speedohealer.com/eng/intro.htm

Black Robotics.com - Unique robots and robot controllers.

http://www.blackrobotics.com/

Black Robotics - official home page, we design and manufacture quality robot platforms and robot electronics.

Cheers,
=-= The CyberPoet