Electrical "Issues"

[Red_Hen]

Thanks, Monte,

Since I needed a new throttle grip, cam and top cover for grip, I ordered the negative ground and atmospheric bolt where it attaches behind transmission from Motobins - hope to have parts by next week.

Felt embarrassed when I was informed by Bob that there are 2 positive wires that go to the positive terminal. The silver lining is I got intimate with EVERY electrical connector on the bike including removing the diode board and removing the corrosion from the connectors.  

Only gremlin I am facing is the low beam doesn't come on when I hit the switch - the high beam works, the horn works, the neutral and hi beam light works as do the instrument lights, turn signals and brake light.  I'm sure I'll figure it out.


Getting VERY close and will post pics when I have her running.  

[montmil]

... I ordered the atmospheric bolt... 

So that's the official name of that there gun-drilled, funny lookin', speedo securing, battery cable holding bolt. We're now becoming quite the educated BMW maven aren't we, Ken? Nicely played [smiley=thumbsup.gif]

Could that headlight bulb low beam filament thingy be burned out?

Monte

[Red_Hen]

Burned out low beam bulb - would be way to simple!

The large bulb - I removed and it looks good.  

The little bulb that also goes into the headlight - that one looks burned out - what does this bulb do?  

It seems way too small to be a low beam light.

[Bob_Roller]

The small lamp is a 'parking' light .

When you turn the key to the "P" position, this small lamp and the tail light come on .

You can also remove the key in this position and the lights will stay on .

[Red_Hen]

Thanks, Bob

Is there a way to test both the low and high beam circuit on bulb while I have it off?

[montmil]

...Is there a way to test both the low and high beam circuit on bulb while I have it off?

Ken, if you have a volt/ohm meter you might use the probes to check for power to the headlight bulb socket. Check the wiring diagram... remember that brown is ground/earth. Touch the probe to the high or low beam wire and see what you get on the meter. Key must be on for power to reach the headlight bulb socket.

Monte

[Bob_Roller]

If you have a multimeter, you can test for continuity of each filament .

If you don't have a meter, you can take two pieces of wire attach one to each of the battery terminals, then touch the other ends to the terminals on the lamp .

If you can tell which terminal has the brown wire in the mating electrical connector, this is ground, the wire from the negative battery terminal goes there .

The other terminals are for low and high beam, both of the filaments share a common ground, that's why there is only three terminals on the lamp itself .

[Red_Hen]

that makes perfect sense.