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1Back to top Go down    No name speedometer on Sat Feb 11, 2017 5:25 pm

Jonas Bodin

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2Back to top Go down    Re: No name speedometer on Sat Feb 11, 2017 5:57 pm

Jonas Bodin

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So I'm in the process of connecting this piece of amazing Laughing Chinese electronics on my K100. I will be using the "start in neutral and N-light"-relay sollution. Just found out that the speedometer want's ground instead of +12V (as it states in the instructions...) to light up the neutral light, so I will need to make some changes with an extra relay. Have found some information on how to make the tachometer steady. Can ad the info I've found about that if that might be of interest?

What I wonder is if anyone has managed to connect this speedometer to the original speed sensor? There's a speed sensor included with this speedo but I would like to use the original sensor if possible.

    

3Back to top Go down    Re: No name speedometer on Sun Feb 12, 2017 4:13 am

Motorbike Mike

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@Jonas Bodin wrote:
So I'm in the process of connecting this piece of amazing Laughing Chinese electronics on my K100. I will be using the "start in neutral and N-light"-relay sollution. Just found out that the speedometer want's ground instead of +12V (as it states in the instructions...) to light up the neutral light, so I will need to make some changes with an extra relay. Have found some information on how to make the tachometer steady. Can ad the info I've found about that if that might be of interest?

What I wonder is if anyone has managed to connect this speedometer to the original speed sensor? There's a speed sensor included with this speedo but I would like to use the original sensor if possible.
Hey Jonas,
Please list all your findings, it's always useful to someone somewhere. Very Happy

Mike.

    

4Back to top Go down    Re: No name speedometer on Sun Feb 12, 2017 4:25 am

charlie99

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@Jonas Bodin wrote:
So I'm in the process of connecting this piece of amazing Laughing Chinese electronics on my K100. I will be using the "start in neutral and N-light"-relay sollution. Just found out that the speedometer want's ground instead of +12V (as it states in the instructions...) to light up the neutral light, so I will need to make some changes with an extra relay. Have found some information on how to make the tachometer steady. Can ad the info I've found about that if that might be of interest?

What I wonder is if anyone has managed to connect this speedometer to the original speed sensor? There's a speed sensor included with this speedo but I would like to use the original sensor if possible.

yes its been done

an operational amplifier is required to increase the signals to near 5 volt levels (as it comes off the sensor at a very low signal )
the circuit is quite simple ...but as you guessed it, another piece of gear to make work

there are a few threads in the forum for making this gear
and I will be exploring over time, to find the easiest way of doing it with minimum components

good luck


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cheezy grin whilst riding, kinda bloke ....oh the joy !!!! ...... ( brick aviator )

'86 K100 RT..#0090401 ..."Gerty" ( Gertrude Von Clickandshift ) --------O%O
    

5Back to top Go down    No need to reinvent the wheel... on Tue Feb 14, 2017 11:55 am

Jonas Bodin

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Found this thread which I have found very helpful: http://www.k100-forum.com/t12022-how-to-get-a-cheap-ebay-speedo-to-work#143402

I will get back in this forum if I find something new to add.

/Jonas

    

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