OK, this thread seems to have gone to a general OD thread so I am going to ask a totally different question.
I have mine currently wired with a toggle switch directly to the solenoid and none of the other connections wired. Will be doing a full wiring job at some point in the future but this has been working great up to now. This is a 6 volt solenoid running on a 12 volt system but others have said they have done the same for years with no problems.
Now when I flip the switch i hear a rapid clicking noise kind of like if you were to hold onto a socket and spin a ratchet handle around rapidly. Sometimes it will go into OD sometimes not.
So far I have replaced the toggle switch, replaced the wire, verified all good connections, removed the solenoid cleaned the plunger and the cavity it fits in with emory cloth, filed the two sets of points and cleaned it in general. Still getting the clicking. What now?