Anyone know what this resistor/diode is for? its between the wires going to the starter solenoid. it looks to have been fitted by someone other than original, but I am not sure?
Side stand bypass possibly. You need a diode and a connection to the Neutral light to make this circuit
was standard fitment on Cagiva/Ducati early on, fitted as a possible protection against electrical backfeed to sensitive circuitry like ECU or CDI. I often found them missing/removed but bikes ran without detrimental effect. https://www.ducatiforum.co.uk/threads/resistor-diode.2091/
Ah, thanks for that Chris, that link explains that some alarms fitted a resistor, and this did have a Datatool alarm fitted.
Prevents the ECU getting spiked by 12v back feeding from the solenoid contacts. Seen a couple of badly fitted alarms over the years bypass the diode and knocking out the starter circuit in the ECU's that employ servo start function.
