Question about 1980 Yamaha XS 400

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I need to wire my bike up with just the head light tail light brake light and ignition where can i get a good diagram

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You can get the manule off e-bay?

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i doubt that one exists for a assembled bobber. but dude all you need are 3 wires on ignition switch 1 from the batt. 1 to the coil 1 to the lights if you want to rewire your bike (kick start only) very simple..1st post on the ignition switch (key switch), 1 wire, from the battery to the ignition. on the second post (key switch), 1 wire from the top post on the coil, (note on the bottom post of the coil another wire goes to your points), on the top post of the coil add 1 wire to one side of the brake light switch, then another wire from the other side of the brake light switch to the brake light, 3rd post (key switch), 2 more wires, 1 to the head light, 1 to the tail light (if you want high beam run a extra off the 3rd post to the hi lo switch then 1 from the hi lo switch to the head lights high beam wire)
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you have just rewired your bike. if you have a electric starter then just add another from the 2cnd post (key switch) to the starter button, then 1 from the starter button back to the solenoid.



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Hi Anonymous, if both the front brake lever and the rear brake pedal do not activate your brake light then you either have a bad bulb, or there is a problem with that docking station behind the tail light, or bad connections and or bad wires either from the ignition switch to the brake light switches or from the brake light switches to the tail lite assembly. So grab your test lite and go to: for a wiring diagram and strat tracing wires and connections. Good luck

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Hi Anonymous, check your head light bulb for bad filiments then make sure the head light ground is good then check your hi/low beam switch for continuity and for a free wiring diagram please visit the website below and good luck.
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Rear light wiring.

All OEMs have their own common wire color coding. Look at and other Suzuki street bike tail light wiring to determine which color is the tail light/ brake light/ left and right turn signal colors. The ground will be the same color for all of these lights.

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Tail and brake light wring for a 1984 honda shadow.

I can't answer your question but I reckon if you find and look at any Honda wiring diagram around that year it could provide some clues - the wiring colours are likely to be the same...

Sep 04, 2017 | 1984 Honda VT 500 C Shadow

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Can i chopper wire a 93 sporty. An d how would I do it. And does anyone have a diagram..

Yeah, sure, you can chopper wire nearly any bike. We call it an eight wire wiring harness. I don't know of anyone that has a wiring diagram but all you do it run hot wires to everything you want to work. Run the hot wire to the ignition switch. Then from there you to to the headlight, the tail light, the brake light switch, the ignition coil, starter switch. Then from the switches to the device.

Good luck

Jul 18, 2011 | 1993 Harley Davidson XLH Sportster 883

1 Answer

Tail lights shorting out and need to find a way to figure out where the problem is

There must be a short perhaps caused by the wiring to anything on that circuit touching earth. Only a good inspection of the wiring for the tail lights and the instruments will find it and concentrating on the areas where th wiring bends like around the steering head might find it faster.-------- Also check the tail light fuse, if its causing the short.Remove the fuse and clean it and re- fit it. Fuse is in the box under the left ram air cover. Should be labeled "Signals" on the diagram on the fuse box cover, in most of the Yamaha motor cycles.You will have to test for voltage when brake is applied.If the tail light shows voltage,there is power.If no voltage, then there is short.The tail light bulb, at the back of bulb, there will be a connector from where, you will have to follow the wire till the front wiring harness.If there is short, the wires will show voltage, even without depressing brake and turning the bike ON.The shorted wires must be getting power directly from battery, as per that , you can re-wire the tail light.-------- You can run additional wire from tail light bulb socket to main wiring harness and see, if tail light works properly.If its works, that means old wiring is causing the short and wirings needs to be rebuild.But if tail light not working with new wiring too, then its ground issue, the connections are getting in contact and causing the short.-------- As per that you can start troubleshooting.---------- this should help.Thanks.Helpmech.

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1 Answer

I need the wiring order at the tail light socket to wire running and stop nlight on a 2009 street bob H-D

I don't have a schematic for a bike this new but usually Harley uses a red wire for the stop light and a green wire for the tail light.

It's easy to figure out. Turn on your ignition switch and depress the rear brake with a test light connected to the red wire. If the test light lights up, that the brake light, if not, try the green wire. One of them should light up when you depress the brake.

Once the wires plug into the plug at the tail light, they both turn to black wires. The turn signal wires are violet (left) and brown (right). Running lights are probably green as well.

This is just a best guess. Harley usually doesn't change much stuff from year to year but electrical wiring is one thing that does change.

Hope this helps. Good Luck.

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