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View Full Version : Tacho pickup for digital guage CBR900RR



gvma
24-02-2008, 05:03 PM
Honda CBR900rr '96

I have bought one of thouse Koso gauges, and nearly finished the wiring, but need to wire up the tacho. I have a wire to plug into the ignition coil, but am unsure which one to go into.

When sitting on the bike, the left side coil has two wires (Black/White and Blue/Yellow) and the right coil has two wires (Black/White and Yellow/Blue). Can anyone tell me which one It must go into (left or right coil, and which terminal)?

Cheers!

(Grouse gauge by the way, thanks Stu for getting it in for me.)

BANDITROD
25-02-2008, 08:16 AM
it needs to go to an earth in this case i'd say the black/white wire and as far as which coil i dont think it really matters mate but i could be wrong

EXBEN
25-02-2008, 07:41 PM
After wiring up a couple of these gauges I've found the tacho to be very sensitive to interference, I found the best way to hook it up is to wrap the Tacho wire around number one plug lead 3 times & tape it on. Otherwise you may find the Tach needle jumps around a lot.

gvma
25-02-2008, 09:52 PM
Sweet, just did so and it works like a charm (so far.) Thanks for the response guys. The bike is nearly finished now and will put up some pics.

Cheers!