Trying to decipher your terminology is the hard part as it is different to mine
Taking resistances reading will only confuse the issue as any connection to what I asked you to check should have little or no resistance. Most resistances you are getting are possibly through bulbs, relays or the Ignitor
Ignition off, disconnect the plug on the starter solenoid and see if there is any connection between the Blue/white wire on the solenoid with any of you alarm wires on the relay plug.
From what I have seen so far the alarm installer did not use the recommended installation.
You will need to disconnect the wires that are still connected as we will need to rule them in or out as only two are used for the Indidcators which should have been wired via diodes.
The wires you removed I presume were the Red/Black for the LED indicator the fused 12volt supply and the two earths?
As for the Neutral light
The Sky Blue and the SkyBlue/White in the relay plug are associated with the neutral switch. Again with the ignition off and the Relay plug disconnected, check the neutral switch by putting the meter on the OHM scale and connect one probe to the SkyBlue wire and the other to earth, now put the biker in and out of neutral. You should get almost zero ohms only when in neutral, if not you have either a faulty switch or corroded wires in the connect to the at the switch or between the switch and the Relay plug.. If that is ok turn the ignition on, earth the SkyBlue/White wire the neutral light should come on.