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Old March 19th, 2018, 05:11 AM   #11
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I tried installing some resistors of unknown ohms in parallel and they didnít seem to work either. The resistors were some old ones that came from a rizoma turn signal kit.
wiring the resistor in parallel with the LEDs will make the problem worse (decrease the resistance of the overall circuit), they need to be put in series to get the effect that you are looking for.
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Old March 19th, 2018, 08:33 AM   #12
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wiring the resistor in parallel with the LEDs will make the problem worse (decrease the resistance of the overall circuit), they need to be put in series to get the effect that you are looking for.
Thank you. I wired in 3ohm resistors in series and it worked! 3ohms is enough to trick the computer
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Old March 19th, 2018, 01:54 PM   #13
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Thank you. I wired in 3ohm resistors in series and it worked! 3ohms is enough to trick the computer
good stuff!
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Old March 20th, 2018, 12:50 AM   #14
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Awesome!
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Old March 20th, 2018, 10:34 AM   #15
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Originally Posted by Pringles View Post
Thank you. I wired in 3ohm resistors in series and it worked! 3ohms is enough to trick the computer
Careful they're rated at high enough wattage so they don't get hot and burn out.
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Old March 25th, 2018, 04:54 AM   #16
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I have tried the SW motech resistor. This is with 18Ohm. Parellel.
Didn't do the trick.

The reaction is differtent. It blink 1 time normal length and then no more.
BEfore without a resistor it blinken several times before it stops.

I think the 18ohm is too small. The current is now to high. It was to low.

Where did you buy the 3 ohm resitor? Or what brand etc?
3ohm in serie, makes the current even less.

Or is the computer not measuring the currrent?

Last edited by Edwin71; March 25th, 2018 at 04:56 AM.
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Old March 25th, 2018, 05:52 AM   #17
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Originally Posted by Edwin71 View Post
I have tried the SW motech resistor. This is with 18Ohm. Parellel.
Didn't do the trick.

The reaction is differtent. It blink 1 time normal length and then no more.
BEfore without a resistor it blinken several times before it stops.

I think the 18ohm is too small. The current is now to high. It was to low.

Where did you buy the 3 ohm resitor? Or what brand etc?
3ohm in serie, makes the current even less.

Or is the computer not measuring the currrent?
I got the 3ohm resistor at the Ducati dealer.
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Old March 25th, 2018, 12:21 PM   #18
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Originally Posted by Edwin71 View Post
I have tried the SW motech resistor. This is with 18Ohm. Parellel.
Didn't do the trick.

The reaction is differtent. It blink 1 time normal length and then no more.
BEfore without a resistor it blinken several times before it stops.

I think the 18ohm is too small. The current is now to high. It was to low.

Where did you buy the 3 ohm resitor? Or what brand etc?
3ohm in serie, makes the current even less.

Or is the computer not measuring the currrent?
I don't know the turn signal circuit of this bike in detail, so what I'm referring to below is my knowledge of general incandescent to LED swaps, if I am incorrect in any of it, feel free to correct me.

In a typical conversion, you want the resistor in series to bring the overall resistance of the circuit back to what it was with just the incandescent bulbs. The reason the LED's sometimes don't work properly when simply swapping bulbs is that the computer is looking for the resistance of an incandescent bulb. Since the resistance of the LED's are significantly less, the increase in current makes the computer think that there is a short in the circuit. By putting a resistor in series with the LEDs, you increase the overall resistance and lower the current in the circuit. Doing this makes the computer think that it is still operating an incandescent bulb. Putting a resistor in parallel will make things worse, no matter the size of resistor.
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Old March 27th, 2018, 05:40 AM   #19
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Hallo Hogbot,
I did the same 2 years ago and installed the led handgards from a hyperstrada 939. I wired in series 11 W and 15 Ohm resistors on each side and it works perfect. I calculated it with the Omic Formular, including 14 V from the Generator, 9,8 V and 3,2 W (led bulbs). In the rear I use led signals taken by the Ducati Panigale without resistors.

Last edited by carracho; March 27th, 2018 at 05:57 AM.
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Old March 29th, 2018, 08:20 AM   #20
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I wonder if this changed on later models or if I just got lucky. I replaced my hand guards after the bike was knocked over a while back and used some LED indicators designed to work with my bark busters. I didn't wire in any resistors and haven't had any issues. Bike is a 2015.
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