Author Topic: Turn signal wiring help pleasssse.  (Read 1050 times)

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Offline BlindSight

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Turn signal wiring help pleasssse.
« on: March 07, 2011, 08:23:42 AM »
Been racking my brain on this one. Turn signals weren't working from the start so went ahead and upgraded to some LED ones in the front on my 68 CB350. Waiting on getting in my integrated rear tun signal/brake lights but trying to get the fronts working in the meantime. So I pulled the wire from the stock light and wired in the power wire from the new led in place. So now the stock lights only had a power wire and the case was grounded to the body but the led's have their own ground wire so just wired that into one of the green ground wires. Picked up an electronic flasher and now the left front light blinks and the indicator lights up but the rear doesn't come on at all (bulb is good). Now for the right turn, both front turns flash and the right rear flashes but the indicator light looks like its trying to come on but really dim with the flash. Suggestions?

Offline Gaither

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Re: Turn signal wiring help pleasssse.
« Reply #1 on: March 07, 2011, 03:51:32 PM »
Blind

First, I know nothing other than what the guys on this Forum have taught me (and, I'm still learning!). Next, I HATE WIRING!

Turn sigs go crazy without a good ground. That said, if it were me, I would run myself a "Popwood Ground" before going any further. If you're interested, here's How:

Note - this is assuming your bike has 2 large headlight retaining nuts inside the headlight housing and that each has a ground wire soldered to each nut (like a CB550). If this is NOT the case, none of the following will apply. (The ground wires on a CB550 are Green.)

Make sure contact with the retaining nut and bolt is clean and well grounded (not hampered by rust, paint, etc. I cleaned mine with Spray Contact Cleaner. That said, splice into one (only one) of the ground wires mentioned above. (I suggest at least a 14 gauge wire.) Run this new wire back to a coil retaining bolt (ASSUMING your coil bolts to the frame). Use a ring terminal. Remove the bolt. Clean the area where the ring terminal touches the frame to bright metal. Run the bolt through the ring terminal and reinstall the bolt.

That fixed the goofy acting turn sigs on my CB550. I hope this applies to your bike and that it will also fix your problems. If it doesn't, read my first sentence again and keep asking questions. Someone here who knows what they are doing will help you.

Good luck.



Gaither ('77 CB550F)

Offline BlindSight

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Re: Turn signal wiring help pleasssse.
« Reply #2 on: March 07, 2011, 04:22:23 PM »
Thanks for the suggestions, will work on getting a butter ground set up tomorrow and go through cleaning all of my connections.

Offline Gaither

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Re: Turn signal wiring help pleasssse.
« Reply #3 on: March 07, 2011, 09:32:28 PM »

Let us know how you come out.

You might also clean your fuse clips, if they are the old style glass tube fuses. They may look pretty good - just dull. However, as I learned here, they should be bright and shiny. A .22 caliber bore brush works perfectly for this.

Good luck
Gaither ('77 CB550F)