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Tach wire

2.7K views 8 replies 4 participants last post by  Panzermann  
#1 ·
Hi Guys does anyone know what color the tach wire is on a 2015 R1200r.
 
#2 ·
There is none as such. The bike has a camshaft rotation sensor which has a lead to the BMSX ECU, and the BMSX tells the Instrument Panel processor, via the CANBUS, what revs to display on the tachometer readout.

The leads from the camshaft sensor are Yellow and Blue/Yellow.
 
#4 ·
Without wishing to appear flippant, I think the answer is, ‘With great difficulty.’

Any tapping into the existing camshaft sensor is fraught, so you either need some very smart circuitry that taps into the CANBUS and reads the ECU rpm data and converts it to a pulse signal, or you attach another sensor (e.g. Hall Effect) somewhere. The flywheel timing position plug on the side of the crankcase would be an option, but I don’t know how you would safely secure a magnet to the flywheel.

Let us know how you go.

Maybe it would be easier to trade up the the 1250 with its glamorous TFT screen.
 
#7 ·
Some like digital displays. CANBUS often hinders DIY mods. :icon_scratch: TFT looks nice!



Mine came Pre-Wired like this.:grin2:
Komplet mit fuel gauge too, by the looks of it! Noice. :nerd:
 
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#8 ·
Hit and Miss

Komplet mit fuel gauge too, by the looks of it! Noice. :nerd:

Ha-Ha. :laugh2: You said it Lawrence. As we all know....
the fuel gauge strip is perfect when it works,
and a perfect headache when it's on the fritz.
Ahh...but to have a float again as a fuel level indicator.:001_rolleyes: