http://www.biketronix.info/uk_shop/index1.html
I purchased one from fleabay at a bargain price last Xmas! The problem is this, the voltage at the tacho input on my bike is only 250mV. In the instructions it says the gear indicator needs a voltage of 6-7V at its input.
Their instructions quote:
Question: I can?t find the right pulse wire what can I do to find it?
Answer 1: Use a Voltmeter and start the bikes engine.
Find on the back of the REV counter a wire what provides a DC voltage of half the battery?s
voltage about 6 to 7 Volts.
Answer 2: Use a Voltmeter with a Frequency-counter.
Hold the Black wire of the Voltmeter to the ground of the Bikes wiring loom. Search with the
Red wire from the Voltmeter in to the back of the REV counter wire loom.
If your bikes engine runs 3000RPM this should produce about 50Hz.
When you find this wire its wise to measure if the voltage on the wire is about 6 to 7 volts.
If so you have found the right one and can be connected to the gear indicators GREEN wire.
Answer 3: Some bikes have a CRANK pick up sensor that is connected to the ECU Unit.
The ECU unit is the bikes ?computer? that sent Signals from and to the engine.
Try to local the Crank pick up sensor and do as described in answer 2.
OK, I know I've got the right wire on the back of the tacho, and the NC23 doesn't have a crank sensor, so
I'm thinking I need to either a) amplify the signal that's present at the tacho input OR b) find another point to connect it??? (the ignition pick up? of the coils? and then would this need to be buffered?)
(On a similar note a friend has fitted a digital dash to his NC30 and has the same problem, ie the tacho part does not register!)
