I made this installation on my Suzuki S40 (exactly as described) and it works perfectly. Thank you very much for sharing this video. Without it, I would never have succeeded. On my S40, I had to set to 4 cylinders to have the right RPM reading.
Knowhow, you are spot on, bravo! never thought it would work , after so many prior attempts on my part to make tachometer work. ***THIS CIRCUIT WORKS FOR 1981 Kawasaki KZ550 ltd*** confirm fully operational meter readout. TACHOMETER FIXED!!!!!!!!!!!.
Hey there fellow Hyosung rider, I've got the same speedo on my comet 250, and the only thing i couldn't figure out was the RPM. I have a wire attached to the front coil and it goes straight to the dash, but its not working. where does that negative go to? the one you talked about in the beginning. Thanks man
Vinny da Comet Hi dude. Yep. I got the same wire going originally to the genuine tacho. A diode blinks to the signal, but the chinese tacho doesn't read it. So I got signal from the negative wire from one of the coils(the rear as it is more convenient to get acces to.I got 2 coils on the GT 650) Afterwards follow as per the video. 100 nanofarad capacitor=> take the signal to the tacho . Then ground the wire with 15 kohms.N.B. Ground the wire after the capacitor and after the wire you took to the tacho. Let me know if it worked for you.
menu 3 i think is 2 stroke or 4 stroke engine. i have put this on single cylinder motorcycle and when its set to 2 in menu it shows way to high rpm and when set to 4 it shows same rpm as original tacho. oh and make sure to put magnet on wheel in correct direction, it took 2 days for me to figure that out :D.
Thanks! Where did you get information? I've tried many setups, negative to positive puls conversion with a transistor, ... I ve checked the output with a led, and it blinked with the RPM. But still the tacho didn't work. I opened the tacho in hope to get more clues about what exactly the tacho expected to receive as signal. If you have more info, please share! Thanks a million! Btw I used this on another heavily altered honda bike.
barttrabbarttrab Hi. Sory. I do not understand what is the question. I got info from all over the net. TH-cam. Google etc. I don' t even remember :). Please be more specific. I will do my best to help you. Thanks P.S. With diode my blinked as well. Also there was original wire from the motor for the signal to the original tachometer. But the chinese tacho do not recognise it. So I put a condesator of 100 nanofarad and resistor of 15 Koms. If does not react, play arround with diffeent condenser and resistors.
Sorry :) i try to understand why this setup works. I also tried different setups. But never found what the tachometer expected as signal. I hoped find out how and why this works. I suppose the tachometer expects spikes in place of pulses. I have a old cb550 with a electronic contact conversion. Many people tried on this bike to find out how to make it work. I have some electronic knowledge but not that much. This came to me as a surprise that it worked! I haven't tested i thoroughly yet. But it looks that you found the right way to make it work. So a big thanks for sharing!
barttrabbarttrab Hi. Good to hear it worked for you. Other people sharing their experience helped me a lot of times here in youtube. Today I made 300 + km and everything worked perfectly.
Hi, i'm a complete noob when it comes to electronic so as i'm trying to get this very same tachometer to work, i'm wondering what is the capacitor is needed for ? Isnt the tachometer supposed to understand current fluctuations when wired after the coil's output ?
Husker Hi. Capacitor 100 nanoFarad. 2 wires come out, because I took the signal after the capacitor to the tachometer wire on the chinese device, and after this this split I needed to ground the capacitor with 15 kOhms.
Knowhow Bulgaria thanks for your answer. I'll try on my 79 xs750. Why do we need to split wires here (didn't know it was possible) when device is already grounded (green wire) ? Also I didn't get why capacitor is needed, maybe to smooth up the current after the coil ?
Husker It just worked this way, after 10's of other ways I tried. And I decided to share. I got the idea from another guy who did this, but on 6V old russian bike.😁 Most probably gets the signal stable.
Tried with a 0.4 microFarad (400 NF) as I had only this one whitout the grounding part since I already grounded the device on the green wire. Aaaand it didn't work, the needle didn't move at all :( I measured tensions oscillating to negative from positive. I tried the spark plugs strategy but I didn't get anywhere aswell :(
Hello,sorry for my English.I tried to do as you 100nF and 15Kohm, but nothing.instead with 100nF and 120Kohm is unstable.what should I do?I have a Suzuki SV650 1999.
Matteo Fattori Are you sure you attached it to the minus of the coils. Try with 6.8 nanofarad and 1.5 kohms. In Italiano Sei sicuro che hai messo il condensatore fra il negativo (minus) de la bobbina ed il filo contagiri e dopo la resistenza fra il filo contagiri e il 0V? Prova con 6.8 nF e 1.5 kOhms
Ho risolto con 100nF e 130Kohm Il sensore della velocità ho usato l’originale è impostato a 4 magneti. Funziona tutto :) I solved with 100nF and 130Kohm The speed sensor I used the original is set to 4 magnets. Everything works :)
Hi! do you know how to dissassemble the speedometer? I got waterdrops inside the glass and ist's all blurry now, and Im not able to take it apart... thanks!
Ramiro Bornetto Hi. I am on a moto trip at the moment.When I get back I will check to see if I will manage to assist you with idea. BTW. Yesterday I was drivig 10 hours in heavy rain and no water in my tacho.
Ramiro Bornetto Hi Ramiro. Checking the options, I see only the screws on the back which, most probably, are the only thing holding it together. Maybe this way you could open it. But keep in mind that once opened you will need some good sealent or silicon to avoid moisture when closed. Btw. Appart from screws, some times , these electronic devices are sound/heat soldered. Good luck.
If you look down from the glass about 15mm you should see a ridge, on mine I can see glue on it, i think that's the joint where it'll part. Thats probably where the waters getting in, but be warned, mine looks like superglue around there so it will not want to come apart.
Здравейте, сложих такъв километраж на Suzuki GSX 750 Inazuma, всичко работи супер но оборотомера спря да отчита. Бях го вързал към бобината и работеше, но изведнъж спря и сега не мога да го подкарам. На бобините и двата извода които са с кабелни обувки идват плюсове. Пробвах и да навия жица около единия кабел на свещ, но пак без резултат. Има ли някаква вероятност да е дефектирал самия километраж. Благодаря ви предварително.
Dian Kostov Здравейте, Много странно как и двата извода са плюс. Не може да няюа минус. Все пак , не съм специалист, но ми се вижда странно. Но ако досега е работил и изведнъж е спрял има логика да се е прецакало нещо. А как е/беше вързан сега оборотомера? Проверихте ли свързването?
Здравей писах някъде по-горе но не съм сигурен дали въпроса ми е стигнал до теб. Понеже тези скоростомери ги дават за 1,2,4 цилиндрови мотори ще работят ли коректно на три цилиндрово бмв к 75 от 1995 ? @@knowhowbulgaria4245
Hello!!! As I do the installation of the tachometer (count turns) the other install everything and it works perfectly, only the meter that by then measures there not, but I had to adapt a floating for the fuel. From this moment I thank you for your answer. Walter from Argentina. Use the google translate.
Hi. 1-Take signal from COIL negative/minus (N.B.one of the 2 small wires comming out, check which one is minus.NOT the big one.) 2-On that wire solder capacitor. In my case 100 nF (nanofarad) worked. 3- After the capacitor take signal of the revolutions to the wire from the tachometer, you are installing. 4- I used 15 kΩ (kiloohms) to ground the wire comming out after capacitor. I hope it helps. Let me know if you need more explanation. Check my other video , I explain there the fuel gauge and how I grounded to stop flashing.
Giordano Muebles y Diseños by Walter Giordano Hi. Try to do the same with 6.8 nanofarad and 1.5 kohms. If it is not wotking again try different capacitor and resistor.
Knowhow Bulgaria i try all wires on ignition coils and they didnt give me signal at all,only wire that did gave me signal was the one of the 2 wires from pickup coil from engine...
Χρηστος Φοσκας Please try this. 1. Take signal from MINUS/Negative pole of one of the coils. 2. Solder 100 nanofarad nF capacitor. 3. After the capacitor take the signal to the tachometer wire from the gadget. 4. Solder 15 kOhms resistor AFTER the capacitor AND AFTER the wire you took to the tachometer and ground it to the batery minus/negative. (First try different resistors if it is not stable/working -50, 100, 130 kOhms. One guy managed with 130) The you can try with different value capacitors. ( One guy managed with 6.8 nF) Set the gadget menu depending on your coils type. Mine is without wastes spark. So my settings are for 4 cylinder engine, even if it is 2. Let me know if it worked for you?
Knowhow Bulgaria ok ! it did worked great with 100 nf capacitor and 100 kohm resistor... i tested many others and this set suit me perfect...thank you... (do you have a very small delay also?)
bonjour,je ne comprend pas le branchement des fils du compte tour serai il possible de faire un plan pour savoir le sens des fils désolée je suis nul en anglais
there is 2 possibilities -depending what set up you have (there is section 4 in setup)if you have option 2 there you need resistor 8-98Ohm (empty -full) or is there is option 3 - 33-566ohm. Resistor to ground. Remember this will stop flashing after another power cycle (turn off and turn on power)
Здравей колега би ли ми обяснил как става свързването на оборотомера , къде се връзва и какво мери , защото имам същия и нещо не ми е ясно и не мога да се справя пък и на англииски ми е малко трудно
Ивайло Крачунов Здравей колега. В моя случай ползвам сигнал от задната бобина. Взимам минус от задната бобина. Едно от двете малки кабелчета е. Мериш с милтицет и така. След това вързах кондензатор 100 нанофарада. Веднага след кондензатора пускам сигнал към оборотомера. След този кабел към оборотомера слагам 15 килоома съпротивление/резистор и го връзвам към маса към рамата или където е удобно. Но внимавай. СЛЕД сигнала към оборотомера. Не преди това. Виж на видеото. Успех и пиши дали си се справил
hello sorry I do not speak English explain to me that the resistance and condenser I have to put to run RPM, I have a suzuki intruder 800 and I can not connect the RPM
adriano di vetta Hi. In my case I used signal from negative pole from the rear bobbin. Then 100 nanofarad capacitor Then 1 wire goes to the tachometer. Then the signal from capacitor gets grounded through 15 Kohms resistor.
@@knowhowbulgaria4245 Hi, can you show a diagram of these connections? My tachometer reading is too high even after I changed from 4 to setting 2 in setting 3
try connecting the rpm wire to the pick up coil, not to the high voltage coil, the pick up coil has a low AC voltage and works well, otherwise you can blow up your tach...
![[ไฮไลต์] ฟุตบอลชาย ฝรั่งเศส vs อเมริกา รอบแบ่งกลุ่ม | โอลิมปิก 2024](http://i.ytimg.com/vi/oZ9aSS0NEEg/mqdefault.jpg)
I made this installation on my Suzuki S40 (exactly as described) and it works perfectly. Thank you very much for sharing this video. Without it, I would never have succeeded. On my S40, I had to set to 4 cylinders to have the right RPM reading.
Excellent information! Thanks for making this video!
Knowhow, you are spot on, bravo! never thought it would work , after so many prior attempts on my part to make tachometer work. ***THIS CIRCUIT WORKS FOR 1981 Kawasaki KZ550 ltd*** confirm fully operational meter readout. TACHOMETER FIXED!!!!!!!!!!!.
I'm happy to hear that.
Thanks for sharing.
Ride save, brother.
Hi James! I have struggled with this speedo for quite some time now on my kz650 B1. I see you fixed it. What wire do you get your REV signal from?
All glory to you mate. For correct RPM signal 130kOhm and 100nF work well for my Suzuki SV650 1999. Speed sencor can fit with original :-) THANK YOU
130kOhm and 100nF not work well for my Suzuki SV650 1999. Its work only to 4000 RPM. If i go more than 4000 RPM, tachometer hand fall to zero
Hi mate! thank you for your video. Do you think this will work for an elder bike with breaker points instead of CDI?
Hi I've got the Speedo all fitted and working, it's fine up to 30mph then it jumps up to 60 and goes on getting faster any ideas cheers Alex
The same works with suzuki vx800. I was fighting with that last weekend.
Hey there fellow Hyosung rider, I've got the same speedo on my comet 250, and the only thing i couldn't figure out was the RPM. I have a wire attached to the front coil and it goes straight to the dash, but its not working. where does that negative go to? the one you talked about in the beginning.
Thanks man
Vinny da Comet
Hi dude.
Yep. I got the same wire going originally to the genuine tacho. A diode blinks to the signal, but the chinese tacho doesn't read it.
So I got signal from the negative wire from one of the coils(the rear as it is more convenient to get acces to.I got 2 coils on the GT 650)
Afterwards follow as per the video. 100 nanofarad capacitor=> take the signal to the tacho . Then ground the wire with 15 kohms.N.B. Ground the wire after the capacitor and after the wire you took to the tacho.
Let me know if it worked for you.
Vinny da Comet
Hi.
Did you manage to figure it out?
Knowhow Bulgaria what wires run the tac and what wires run the speedo sensor
menu 3 i think is 2 stroke or 4 stroke engine. i have put this on single cylinder motorcycle and when its set to 2 in menu it shows way to high rpm and when set to 4 it shows same rpm as original tacho.
oh and make sure to put magnet on wheel in correct direction, it took 2 days for me to figure that out :D.
Hi.
Nope. It is 2 or 4 cylinders.
The reason for high rpm's is the wasted or not wasted spark bobbin type.
Здравей
може ли скоростомера да се ползва но три цилиндрово БМВ к 75
@@knowhowbulgaria4245
Hey can you post a picture of the instructions please?
Thanks!
And thanks for the video!
i imsm the problem the tachometer hand does not react immediately but has a delay of half a second
Thanks! Where did you get information? I've tried many setups, negative to positive puls conversion with a transistor, ... I ve checked the output with a led, and it blinked with the RPM. But still the tacho didn't work. I opened the tacho in hope to get more clues about what exactly the tacho expected to receive as signal. If you have more info, please share! Thanks a million! Btw I used this on another heavily altered honda bike.
barttrabbarttrab Hi. Sory. I do not understand what is the question.
I got info from all over the net. TH-cam. Google etc. I don' t even remember :).
Please be more specific. I will do my best to help you.
Thanks
P.S.
With diode my blinked as well. Also there was original wire from the motor for the signal to the original tachometer.
But the chinese tacho do not recognise it. So I put a condesator of 100 nanofarad and resistor of 15 Koms.
If does not react, play arround with diffeent condenser and resistors.
Sorry :) i try to understand why this setup works. I also tried different setups. But never found what the tachometer expected as signal. I hoped find out how and why this works. I suppose the tachometer expects spikes in place of pulses. I have a old cb550 with a electronic contact conversion. Many people tried on this bike to find out how to make it work. I have some electronic knowledge but not that much. This came to me as a surprise that it worked! I haven't tested i thoroughly yet. But it looks that you found the right way to make it work. So a big thanks for sharing!
barttrabbarttrab
Hi. Good to hear it worked for you.
Other people sharing their experience helped me a lot of times here in youtube.
Today I made 300 + km and everything worked perfectly.
Hi, i'm a complete noob when it comes to electronic so as i'm trying to get this very same tachometer to work, i'm wondering what is the capacitor is needed for ? Isnt the tachometer supposed to understand current fluctuations when wired after the coil's output ?
Does this comes with a total distance odometer and a trip odometer reset-able?
drunktnk
Yes.
You could have a trip meter and reset it. And total distance meter and reset this as well.
Hi, what is the capacitor used and why 2 wires are coming out of the capacitor ? Thanks
Husker
Hi.
Capacitor 100 nanoFarad.
2 wires come out, because I took the signal after the capacitor to the tachometer wire on the chinese device, and after this this split I needed to ground the capacitor with 15 kOhms.
Knowhow Bulgaria thanks for your answer. I'll try on my 79 xs750. Why do we need to split wires here (didn't know it was possible) when device is already grounded (green wire) ? Also I didn't get why capacitor is needed, maybe to smooth up the current after the coil ?
Husker
It just worked this way, after 10's of other ways I tried. And I decided to share. I got the idea from another guy who did this, but on 6V old russian bike.😁
Most probably gets the signal stable.
Knowhow Bulgaria ok ok thanks you anyway for sharing, i will try today if I get my hand on a capacitor. :D
Tried with a 0.4 microFarad (400 NF) as I had only this one whitout the grounding part since I already grounded the device on the green wire. Aaaand it didn't work, the needle didn't move at all :( I measured tensions oscillating to negative from positive. I tried the spark plugs strategy but I didn't get anywhere aswell :(
Hello,sorry for my English.I tried to do as you 100nF and 15Kohm, but nothing.instead with 100nF and 120Kohm is unstable.what should I do?I have a Suzuki SV650 1999.
Matteo Fattori
Are you sure you attached it to the minus of the coils.
Try with 6.8 nanofarad and 1.5 kohms.
In Italiano
Sei sicuro che hai messo il condensatore fra il negativo (minus) de la bobbina ed il filo contagiri e dopo la resistenza fra il filo contagiri e il 0V?
Prova con 6.8 nF e 1.5 kOhms
Ho risolto con 100nF e 130Kohm
Il sensore della velocità ho usato l’originale è impostato a 4 magneti. Funziona tutto :)
I solved with 100nF and 130Kohm
The speed sensor I used the original is set to 4 magnets. Everything works :)
Matteo Fattori
Perfetto.
This is good idea also for the other gyus. Just play arround with the parameters.
Hi! do you know how to dissassemble the speedometer? I got waterdrops inside the glass and ist's all blurry now, and Im not able to take it apart... thanks!
Ramiro Bornetto
Hi. I am on a moto trip at the moment.When I get back I will check to see if I will manage to assist you with idea.
BTW. Yesterday I was drivig 10 hours in heavy rain and no water in my tacho.
Knowhow Bulgaria thanks! Have fun and drive safe
Ramiro Bornetto
Hi Ramiro.
Checking the options, I see only the screws on the back which, most probably, are the only thing holding it together. Maybe this way you could open it. But keep in mind that once opened you will need some good sealent or silicon to avoid moisture when closed.
Btw. Appart from screws, some times , these electronic devices are sound/heat soldered.
Good luck.
Knowhow Bulgaria thanks man!
If you look down from the glass about 15mm you should see a ridge, on mine I can see glue on it, i think that's the joint where it'll part.
Thats probably where the waters getting in, but be warned, mine looks like superglue around there so it will not want to come apart.
Здравейте, сложих такъв километраж на Suzuki GSX 750 Inazuma, всичко работи супер но оборотомера спря да отчита. Бях го вързал към бобината и работеше, но изведнъж спря и сега не мога да го подкарам. На бобините и двата извода които са с кабелни обувки идват плюсове. Пробвах и да навия жица около единия кабел на свещ, но пак без резултат. Има ли някаква вероятност да е дефектирал самия километраж. Благодаря ви предварително.
Dian Kostov
Здравейте,
Много странно как и двата извода са плюс. Не може да няюа минус. Все пак , не съм специалист, но ми се вижда странно.
Но ако досега е работил и изведнъж е спрял има логика да се е прецакало нещо.
А как е/беше вързан сега оборотомера?
Проверихте ли свързването?
Здравей
писах някъде по-горе но не съм сигурен дали въпроса ми е стигнал до теб.
Понеже тези скоростомери ги дават за 1,2,4 цилиндрови мотори ще работят ли коректно на три цилиндрово бмв к 75 от 1995 ?
@@knowhowbulgaria4245
Mine keep resets to 2871.. on the 1st menu.. can you teach me why?
I have a hyousung 650 injected I'm putting a panel iqual au your not see the power of the capacitor in the video please give me the numbers
He say 100 nFarads capacitor and 15 kOhms resistor.
Hello!!! As I do the installation of the tachometer (count turns) the other install everything and it works perfectly, only the meter that by then measures there not, but I had to adapt a floating for the fuel.
From this moment I thank you for your answer.
Walter from Argentina.
Use the google translate.
Hi.
1-Take signal from COIL negative/minus (N.B.one of the 2 small wires comming out, check which one is minus.NOT the big one.)
2-On that wire solder capacitor. In my case 100 nF (nanofarad) worked.
3- After the capacitor take signal of the revolutions to the wire from the tachometer, you are installing.
4- I used 15 kΩ (kiloohms) to ground the wire comming out after capacitor.
I hope it helps. Let me know if you need more explanation.
Check my other video , I explain there the fuel gauge and how I grounded to stop flashing.
Hi, I did the installation as I indicated. The good thing, that I got tachometer reading, but it's unstable does not take the signal well.
Giordano Muebles y Diseños by Walter Giordano
Hi.
Try to do the same with 6.8 nanofarad and 1.5 kohms.
If it is not wotking again try different capacitor and resistor.
Knowhow Bulgaria
Thanks a lot for this. In the video you say 100kohm condenser. You mean capacitor yes?
Eric Olympia
Hi. Yes. Capacitor.
Let me know if this worked for you.
Regards.
hello can you pls help me how to connect the 3 wires from the sensor
Hi.
One of the wires is ground.
In my case White.
Red was positive (plus).
The other negative( minus).
hi! i have an xv250 a 2 cylinder... in choice 2 of the menu it shows x4 the rpm and in choice 4 of the menu it shows x2... any idea how to fix it?
Χρηστος Φοσκας
Hi,
Did you get the signal from the minus of one of the bobins as I explained.?
Knowhow Bulgaria i try all wires on ignition coils and they didnt give me signal at all,only wire that did gave me signal was the one of the 2 wires from pickup coil from engine...
Χρηστος Φοσκας
Please try this.
1. Take signal from MINUS/Negative pole of one of the coils.
2. Solder 100 nanofarad nF capacitor.
3. After the capacitor take the signal to the tachometer wire from the gadget.
4. Solder 15 kOhms resistor AFTER the capacitor AND AFTER the wire you took to the tachometer and ground it to the batery minus/negative. (First try different resistors if it is not stable/working -50, 100, 130 kOhms. One guy managed with 130)
The you can try with different value capacitors. ( One guy managed with 6.8 nF)
Set the gadget menu depending on your coils type.
Mine is without wastes spark.
So my settings are for 4 cylinder engine, even if it is 2.
Let me know if it worked for you?
Knowhow Bulgaria thank you for you time and help brother,i will try them and i will inform you about it!
Knowhow Bulgaria ok ! it did worked great with 100 nf capacitor and 100 kohm resistor... i tested many others and this set suit me perfect...thank you... (do you have a very small delay also?)
Hola disculpe podría hacer un diagrama para poder entender mejor es que no hubo inglés solo español y no entiendo la instalación
i confirm that it works on cb400sf
bonjour,je ne comprend pas le branchement des fils du compte tour serai il possible de faire un plan pour savoir le sens des fils désolée je suis nul en anglais
ducat man
Please send me contact at
Knowhow.bulgaria @ gmail
ducat man
Hi.
Did you managed?
The speedometer on mine doesnt work, indicator stays at 0... anyone an idea? İve tried both sides of magnet. A red led flashes but indicator stays 0
How to stop my fuel gause flashing?
there is 2 possibilities -depending what set up you have (there is section 4 in setup)if you have option 2 there you need resistor 8-98Ohm (empty -full) or is there is option 3 - 33-566ohm. Resistor to ground. Remember this will stop flashing after another power cycle (turn off and turn on power)
Здравей колега би ли ми обяснил как става свързването на оборотомера , къде се връзва и какво мери , защото имам същия и нещо не ми е ясно и не мога да се справя пък и на англииски ми е малко трудно
Ивайло Крачунов
Здравей колега.
В моя случай ползвам сигнал от задната бобина.
Взимам минус от задната бобина. Едно от двете малки кабелчета е. Мериш с милтицет и така.
След това вързах кондензатор 100 нанофарада.
Веднага след кондензатора пускам сигнал към оборотомера.
След този кабел към оборотомера слагам 15 килоома съпротивление/резистор и го връзвам към маса към рамата или където е удобно.
Но внимавай. СЛЕД сигнала към оборотомера. Не преди това.
Виж на видеото.
Успех и пиши дали си се справил
hello sorry I do not speak English explain to me that the resistance and condenser I have to put to run RPM, I have a suzuki intruder 800 and I can not connect the RPM
adriano di vetta
Hi.
In my case I used signal from negative pole from the rear bobbin.
Then 100 nanofarad capacitor
Then 1 wire goes to the tachometer.
Then the signal from capacitor gets grounded through 15 Kohms resistor.
@@knowhowbulgaria4245 Hi, can you show a diagram of these connections? My tachometer reading is too high even after I changed from 4 to setting 2 in setting 3
Didn't work... Please help me...
I did not understand well !!! where the rpm wire is connected
try connecting the rpm wire to the pick up coil, not to the high voltage coil, the pick up coil has a low AC voltage and works well, otherwise you can blow up your tach...
Connect to negative (-) side of coil
Здравей