Topic: CB550K3 USA - headlight is always on..?

[carnivorous chicken]

I was pulled over in WA for not having a headlight on  in the daytime (20+ years ago, but they will still do it).

[calj737]

And as far as fuel consumption is concerned - If you want to be technical and really, really correct , you have a higher fuel consumption when lights are on. The load on your alternator is higher, thus requiring more power to drive it, thus needing more fuel. Whether this is measurable at all, is another question....

Your premise is only valid under 2 scenarios: that you manually adjust the throttle to match the output of the alternator under its load, or;
You are operating an engine-driven generator that is equipped with engine management controls to alter the engine speed to produce more output for the alternator under a load.

As far as all SOHCs manufactured between 1969 and 1978 I’m unaware of any equipped from Honda with this electronic capability.

And based upon Delta’s statement,
 “

At traffic lights in daylight you may select neutral and save gas .

Being in neutral versus being in gear with a headlight OFF is similiarily silly. (I think he later concedes this point). 

[shads]

You can use the m-unit with your stock controls but you need to make some changes in your harness in order to do so.

The stock harness carries power to the controls, then on to the component. The m-unit input from the controls must be a ground signal, the power then from the m-unit to the component directly. If you don't re-route the power, you will damage the m-unit.

Hey Cal, thanks for the input.  I'm doing a full re-wire of the bike with my own custom harness so been figuring out exactly what the M-Unit needs re inputs/outputs over the weekend.  I'll post the diagram on here soon, would be great if you could have a quick look over it at some point.   

[PeWe]

LED H4 need less amps which ensure the battery charging. My K6 has also a parking light LED that lit rather bright.