Yes that helps.
A couple of points that might help you...
Ohms is a unit of resistance. Maximum conductivity occurs when the unit of resistance is lowest. Therefore, if a switch or connection is open, it would measure very high or infinite resistance. Your meter indication of a 1 is actually an overrange condition, meaning the meter in incapable of measuring the resistance between the probes, as when the probes are just waving about in midair.
Since you are basically looking for either very low resistances, or very high resistances you are unable to measure, I suggest you use the lowest ohm range available on your meter. On this scale anything above 200 ohms will indicate a 1 (over-range). But, you may actually be able to measure resistance values below 200 ohms, which is good information to have, as these low resistances are significant in the bikes low voltage regime. For example, your 8 Watt tail light filament ought to measure about 20 ohms. The 23 watt filament in the bulb, will read lower ohms, about 7.1 ohms.
When measuring ohms in a circuit, you have to factor all of the circuit elements into the measurement. For example, if you place your probe tips on the unconnected stop light switch. You should read near zero when the switch is closed, and over-range (infinity) when the switch is opened.
If you connect the stop switch to the tail lamp and measure from the Green/Yel post to frame, your meter passes its measurement power through the tail lamp filament as it is connected to frame and the stoplight switch post and should measure about 7 ohms plus whatever the wire resistance was in that circuit. Note that on a 20,000 ohm scale, 7 or 10 ohms is so low, that the meter may only display 0 as that is below the meters measurement resolution, or inherent error contribution. (The spec for your meter accuracy is +/- 2.5% of reading, which is 500 ohms) But, on a 200 ohm scale (20 Ohm scale would be better), you ought to have enough meter resolution to get a digit reading other than zero. The spec says ~5 ohms error for this range.)
I suggest if you wish to test the stop switch, you either do it out of circuit (unconnected) or place the probe tip on the unconnected black wire terminal and frame ground. The meter should give infinity when the stop switch is open, and a low reading (bulb filament + wire resistance) when it is closed.
The Black wires go to a lot of places on the bike. For example it also goes to the Vreg, whose internal contacts at rest connect the alternator 7.2 ohm field coil to frame ground. So, if you place your ohmmeter probe tips across any black wire and frame ground, the meter will send its power through that device as well as any thing else attached to the black wire distribution, like the winker relay and ignition coils, etc.
The meter injects power into the circuit being tested, and measures what is consumed by the test circuit. It will use any and all paths available between probe tips. You have to be aware of all the circuit paths for the readings to make any sense.
Is this of any help to you?
