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Discussion Starter · #1 ·
Hey folks,

Switching out the turn signals of my 1973 CL350. Not bothering with LED. I have some nice mini incandescent 2-wire signals that I got from DCC.

Stock rear signals are two wires, so that's an easy swap. Stock front signals are single wire, which means they must be grounded in the housing somewhere. So I've got a ground wire that I have to find a place for.

Anyone have experience grounding a front CB or CL 350 turn signal? Where's the best place to ground it?

A. Inside the headlight bucket, on the bolt grounds?
B. Plug the ground wire into the Green Ground cluster in the harness?
C. Run the ground wire to the frame somehow?
D. None of the above?

I've got the chrome fork tubes that cover the upper forks so it makes running that ground wire tricky.

Any advice would be appreciated!
 

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Discussion Starter · #3 ·
I think there is a free harness ground near the coils.
Good to know. So just run the signal ground wires back past the steering head to the coils eh? Steering doesn't impede them at all?


I've actually got a few free harness grounds in the headlight bowl cluster as well. I am not running a Speedo or a Tach, so that opened up some gree ground connections that I may be able to use. I didn't think those were true enough grounds though...
 

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I am not 100% mine is stock and in the shed so I can't verify how they are right now.
 

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Ground them to the Headlight Case Mounting Bolts.
They already have a NUT with a Soldered Ground Wire on the inside of the Headlight case.

You may need to make a "Y" Connector but that's not hard to do.
Or just use a LARGE Diameter RING Terminal Under the Headlight bolts.

Vintage Connections sells all the pieces you need to make a Factory Like "Y".
 

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Ground them to the Headlight Case Mounting Bolts.
They already have a NUT with a Soldered Ground Wire on the inside of the Headlight case.

You may need to make a "Y" Connector but that's not hard to do.
Or just use a LARGE Diameter RING Terminal Under the Headlight bolts.


Im not understanding.. Dont each of the headlight grounding bolts have green wires that connect to something.. why would you need a Y something or a ring terminal??
 

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Yes, just use the ground wire connection in the headlight shell that the signal mounting nut ground wires normally plug into.
 

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Hey folks,

Switching out the turn signals of my 1973 CL350. Not bothering with LED. I have some nice mini incandescent 2-wire signals that I got from DCC.

Stock rear signals are two wires, so that's an easy swap. Stock front signals are single wire, which means they must be grounded in the housing somewhere. So I've got a ground wire that I have to find a place for.

Anyone have experience grounding a front CB or CL 350 turn signal? Where's the best place to ground it?

A. Inside the headlight bucket, on the bolt grounds?
B. Plug the ground wire into the Green Ground cluster in the harness?
C. Run the ground wire to the frame somehow?
D. None of the above?

I've got the chrome fork tubes that cover the upper forks so it makes running that ground wire tricky.

Any advice would be appreciated!
B or C, the headlight bucket bolts aren't grounded until they're plugged into the green wire in the main harness. What kind of bulb? single contact or double? A double contact bulb means that second wire is for running lights, single contact means it's a ground.
 
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