No not that simple at all....a graphing meter would show a signal that may look like a square wave across the screen....the speedo healer takes that signal and can be programed for a differeent out put signal ....It may look like a small simple box but there is a lot of technology going on in there.............

 

No...not possible at all...

 

:bs

i bet there is someone on here who is experienced enough with electronics and ICs to build one.

 

Subscribing I bet you could programm a PIC to do it, I have a few of those laying around. If I get time I'll give it a wirl and revive this thread with results.

I have a few other projects going on right now so it may be awhile.

 

I made one for my truck, but I think doing it for the R1 is a whole different ball game.

Here is the link that has the plans for what I did, not that it will help.

http://www.tbichips.com/drac/

 

Here is a good informational link for those that want to develop:

http://homepages.which.net/~paul.hills/Circuits/PwmGenerators/PwmGenerators.html

 

It seems it would be a hassle though

 

I don't think it would be worth the research/frustration/time that would go into it when you can buy one for relatively cheap.

If you have a portable GPS perhaps you could just gauge how fast you're going that way.....although that won't help the additional miles you're adding to the odo since it sounds like you changed your gearing.

 

Well said wasupdu.... original post was maybe a "resistor wire to correct speedo" ....
I had no Idea this thread would become a so tech....yes as previously posted it can get very detailed about how speedo healer works......The time it takes on R+D is huge ....to develope and market a product that is compact and can plug in and is fairly cheap ....
is well worth the cost of trying to experiment on your bike....for what its worth Its not so simple as a PWM signal....The product allows you to program the milliseconds of time
that the signal is being sent to the your digital cluster.......this envolves a circuit board or "prom chip" that can be manipulated to correct different inputs according to your needs ...

 

Actually it is so simple as a pulse width modulated signal. Yes, modification of the frequency delay is variable using ICs. This is very similar to how power commanders and that other fuel management augmentation system(can't remember the name now) work. P.S. - it is interpreted as a digital signal.

You can read more about how vehicle speed sensors work here:
http://www.autoshop101.com/forms/h36.pdf

 

so is it an analog or digital signal being interpreted/adjusted by the speedo healer?

 

:dunno

 

How much would you charge to make a speedo healer for me ?? Remember you have to cut me a break on the price since I have a R1. If it helps on your service charge ....I think you've got a good lookin R1 ...lol ....... If your to expensive I may get a price qoute from broc944!!! Look I don't build circuit boards for a living ...Could I make one ???? No.... broc944 shows details of his truck and pictures of the retrofit and although its not space shuttle technology, it looks pretty detailed...what I do on a regular basis is to check voltages and signals and decide if it's a good wave form or not ......the original post asked if homade speedo healer is possible using a resistor.... no its not ....original post by wasupdu is still correct why bother, buy a speedoHealer........

 

I wonder how easy it would be, i just got installing a Speedo Healer V4 today, and it's pretty darn small and packed with lots of features and light up numbers on it. And was pretty easy to install, if u don't want head aches and simple install just get a V4, but for the originality of making your own, try it out.

Curby

 

well here is the circuit for it....

http://www.jaycar.com/productView.a...&ProdCodeOnly=&Keyword1=&Keyword2=&pageNumber=&priceMin=&priceMax=&SUBCATID=347

here is info on programming...

http://www.600rr.net/vb/showthread.php?p=1526467

 

Basically the speedo sensor outputs either 0 or 5 volts. It does this via a sensor at the back of the motor which picks up a gear on the output shaft (R1). I cant remember for sure but the R1 is about 20 pulses per wheel revolution. Some bikes are more and some less. What a speedo healer does (I have a yellow box speedo corrector on mine www.yellr.com I think) is count these pulses and then outputs a different number of pulses depending on the ratio you have chosen. Sounds simple enough until you get into electrical noise interference and different voltages for different bikes. Some are pull up voltages and some are pull down (ie they are at 5V and pull down to 0V when the sensor is picked up or vice versa). Easy enough if you're into electronics, but pretty hard if you want to make and sell your product on the wider market. I'd just buy one and I did.

Geoffro

 

:iamwithst

Yes, it is a 5V pulse per tooth. I counted the pulses when I installed my Pro-Oiler, IIRC it was 18 pulses per wheel revolution. Other bikes use 12V at the sensor, and the pull-up vs pull-down issue is real, but if you're building a one-off for an R1 you can ignore that and just wire it for the R1's signal...

This is NOT a pulse-width-modulation (PWM) system. PWM signals vary the width of the pulse (hence the name) to convey information and generally keep the signal frequency stable. The information is the ratio between the pulse "on" time versus "off" time.

On the speedo, the information is number of pulses per second. The pulses will get narrower as the wheel turns faster, but the off time will also get shorter, ie: the ratio of on to off will always be constant (and will match the profile of the gear that the sensor is reading).

The speedohealer isn't complete rocket science (basic digital electronics), but it is a lot more than a resistor. If you know how to build electronic circuits and program a microcontroller, then it's a relatively easy task, but unless you want to do it for the fun of it or have some other project in mind that this naturally fits in to (like building a datalogging system or something), then the effort spent is not worth the cost savings.

 

:lol newbs :sissy::lol

 

Yes to a newb....no to experience......try to get a job with no experience.....its like trying to be the most the most powerful nation in the world!! The Bushes!!