Indicator Warning Lamp Return Path

[Richard PS]

The indicator warning lamp on my A65 has two terminals feeding off the right and lefthand indicators. This seems to be standard practice but how does the lamp have a return path? Am I right in assuming that it goes to the frame via the lamps on the non-lit side, which are parallel to it and so of relatively low resistance?

[Spaceman]

One side of the bulb holder is internally connected to the stalk and therefore the earth path is through the frame.

[Richard PS]

Thanks Spaceman. I was thinking of the warning light in the headlight cowl which does not appear to be earthed. Were you thinking I meant the indicator lights themselves? Sorry if it was unclear.

[Spaceman]

Sorry - brain wasn't in the right gear.

The warning light return path is through the non-flashing indicator bulbs. This path consists of a 72 Ohm warning bulb in series with a 3.4 Ohm pair of indicator bulbs so that, of the 12 V applied to the live side of the warning light, 11.5 V is dropped across the warning bulb and the indicator bubs only see 0.5 V. Hence the warning light flashes brightly but the non flashing indicator bulbs don't get enough voltage to even glow.

[Richard PS]

Brilliant, many thanks. I thought that could be the only way it could happen but could not quite believe it would work. I even got into resistances an 1/R1 etc! It is a nice elegant solution and I no longer need worry about the lack of a red wire before putting the headlight together after the re-wire, thanks!
Google was no good at all and the Haynes Motorcycle Electrics manual, which is pretty comprehensive, does not even mention it, though it shoes a wiring diagram of the type.