Follow along with the video below to see how to install our site as a web app on your home screen.
Note: This feature currently requires accessing the site using the built-in Safari browser.
We noticed you are blocking ads. DO THE TON only works with community supporters. Most are active members of the site with small businesses. Please consider disabling your ad blocking tool and checking out the businesses that help keep our site up and free.
Hi!
Is it just my brain that is on overtime her or......?!?!?!
I have a new speedo on my CB400f that has only one indication light for the turnsignal. How the fudge can I wire this so that it blinks on both right and left light?
I have only 1 wire and earth for this light...I can't bridge the cable to both lights, than the current will travel past the brigde and to the blinker that is not activ. Right?
It's this one:
http://www.dimecitycycles.com/vintage-cafe-racer-caferacer-bobber-brat-chopper-custom-motorcycle-electronic-parts-mini-chrome-speedo-kilometer-speedometer-15-0040b.html
You'll need to grab yourself a couple of diodes from any electronic store. Then solder them inline with the live indicator wire that leads to the bulb. Since there's only one bulb wire you'll need to either splice or use a connector to join both wires into the one.
I've never given thought to how it works, but on a lot of the early bikes the turn signal indicator isn't connected to ground. It gets 1 wire from each of the blinker circuits (light blue & orange on most hondas) I assumed it grounds back thru the bulbs of the opposite circuit?
OK if the bulb is grounded but has two positive leads in, wouldn't it just take shortest path to ground rather than continue to the other set of signals? Literally a short-circuit.
I don't quite understand it, I'm not a sparky, but apparently the small bulb acts as a resistor and only lets a small amount of current through. It does go through the other bulbs, but there isn't enough current to light them up.
It does take the path of least resistance, but like water, it will take several paths at once.
Connect a ground to one side of the bulb, and on the other side connect both signal leads each with a diode connected to them. The diodes only allow the current to travel into the bulb but not out of the bulb so that it can only ground to the ground wire and not to the other signal.
YOU DON'T NEED DIODES - The OEMs did it like this all the time. The indicator bulb gives you just enough of a voltage drop so that after it grounds back through the opposite side's blinker bulbs it won't light them. Since the turn signal switch is only sending + to (for example) the right side, the left side isn't connected to anything so no short. If you don't understand the wiring diagram stare at it until you do
That's OK if the pilot light draws the same current as the stock bulb, but it probably doesn't because he's using a different one that looks like a LED.
The other option is to use a 3 pin flasher relay. The 3rd pin is marked P for pilot - you wiire that straight to the pilot light.
That was my understanding. The bulbs ARE resistors (that's how they generate enough heat to illuminate) and so once it reaches ground at the indicator, it wouldn't continue to the next load of resistors.
As I understand and LED uses resistance as well but I doubt that it would be enough to function the way that stock clock is set up.
Yes, the issue is that if you're running after-market signals and display you'll likely find that the new stuff ain't going to draw the same level of current that the OM designed for. If you plug it in and it works fine then great but if, like me you got both sides flashing no matter which way you signal you'll need diodes like explained here. You may also need to swap out the blink relay too as also has been documented here. Because this depends on what signals and display you have, what you need to do will vary too.
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.
