After further investigating looks like the problem is that the 12pin connector under console don't deliver signal to o 2pin tacho-connector's red wire. It seems 12pin incoming wiring don't include signal from coils. Detaching the console leaves only 2 connectors, 12pin for console lights and a 6-pin connector that's not used at all. Does anyone recognise this 6pin, what's it's used for? It has numbered pins 1 to 6. Pls have a look at the 1st pic here:
http://hudemisc.blogspot.com/2011/11/triumph-america-tacho-install.html
