guzzi2go,
between those two wires on tach you!ve mentioned is just slightly under 1 ohm.
also, light fuse keep blowing immediately, no horns, brake light and etc. Indicators are running fine starting, charging but still no oil and charge light... (I assume I can live without these two, oil check after every ride, as normal).
all connectors are clean, cables tight. Negative pole of battery connected directly to the frame, cables are not damaged.
I really dont know where to look now
No way.