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Shinglejohn · 04-01-2010, 06:38 AM

I bought a junker 75 cb750 for a couple of hundys last last week that was in a thousand unorganized pieces, a long abandoned cafe project. It had most needed parts including some bullet signals. All four bullet signals have two leads coming from them. The rear signals from a cb750 have one lead and a ground that mounts to the base of the signal. So how do i properly wire these signals?

seruzawa · 04-01-2010, 06:47 AM

Ground the black lead to the frame. Really, you can ground it most anywhere that's metal on the bike.

Shinglejohn · 04-01-2010, 07:03 AM

Both leads are black, how do i determine which is the ground?

The_AirHawk · 04-01-2010, 07:08 AM

Quote:

Originally Posted by Shinglejohn

Both leads are black, how do i determine which is the ground?

It doesn't matter. Either one - that's the beauty of 'lectrickery: it'll find a way.......

seruzawa · 04-01-2010, 07:12 AM

Pull out the bulb and check with an ohmmeter to be sure that neither lead is grounded to the metal bullet housing. They shouldn't be. If so then either lead can be the ground.

I have seen lights that are both grounded to the housing AND use a lead to ground also. That was done sometimes for rubber mounted lights. If so the ohmmeter will tell you which lead is ground. In that case you really don't need to use the ground lead at all.

The_AirHawk · 04-01-2010, 07:20 AM

Quote:

Originally Posted by seruzawa

Pull out the bulb and check with an ohmmeter to be sure that neither lead is grounded to the metal bullet housing. They shouldn't be. If so then either lead can be the ground.

I have seen lights that are both grounded to the housing AND use a lead to ground also. That was done sometimes for rubber mounted lights. If so the ohmmeter will tell you which lead is ground. In that case you really don't need to use the ground lead at all.

Right as soon as I saw you re-post, I thought "but what if it's a DUAL FILIMENT BULB........?

If THAT is the case, then the housing is ground, and both leads are hot (one for running-light, one for signal).

Otherwise, it's like seruzawa sez.

'lectrickery finds a way........

acecycleins · 04-01-2010, 07:22 AM

Are you sure that the DOT even cares if you have signals on your bike? GA DOT doesn't care if the bike is older than 20yo. Hand signalling is just fine with them. Just wondering?????????

Shinglejohn · 04-01-2010, 12:03 PM

I dont know what the DOT policy is, but id prefer not to hand signal. Besides most non-riding drivers dont understand hand signals. Its hard enough to ride in the city with out being hit by cell phone users.

12er · 04-01-2010, 05:21 PM

"why is he waving at me?" "I'll just go around him on the right."

04-01-2010, 06:38 AM	#1
Shinglejohn Registered Member Join Date: Jul 2008 Location: Cleveland, OH Posts: 73	Installing bullet signals on my cb750 I bought a junker 75 cb750 for a couple of hundys last last week that was in a thousand unorganized pieces, a long abandoned cafe project. It had most needed parts including some bullet signals. All four bullet signals have two leads coming from them. The rear signals from a cb750 have one lead and a ground that mounts to the base of the signal. So how do i properly wire these signals?

04-01-2010, 06:47 AM	#2
seruzawa Robby Join Date: Nov 2001 Location: 8501 ft. Posts: 16,803	Ground the black lead to the frame. Really, you can ground it most anywhere that's metal on the bike. __________________ I've seen things you people wouldn't believe. Attack ships on fire off the shoulder of Orion. I watched c-beams glitter in the dark near the Tanhauser Gate. All those moments will be lost in time, like tears in the rain.

04-01-2010, 07:12 AM	#5
seruzawa Robby Join Date: Nov 2001 Location: 8501 ft. Posts: 16,803	Pull out the bulb and check with an ohmmeter to be sure that neither lead is grounded to the metal bullet housing. They shouldn't be. If so then either lead can be the ground. I have seen lights that are both grounded to the housing AND use a lead to ground also. That was done sometimes for rubber mounted lights. If so the ohmmeter will tell you which lead is ground. In that case you really don't need to use the ground lead at all. __________________ I've seen things you people wouldn't believe. Attack ships on fire off the shoulder of Orion. I watched c-beams glitter in the dark near the Tanhauser Gate. All those moments will be lost in time, like tears in the rain.

04-01-2010, 07:22 AM	#7
acecycleins Founding Member Join Date: Jun 2007 Location: North Georgia Posts: 4,125	Are you sure that the DOT even cares if you have signals on your bike? GA DOT doesn't care if the bike is older than 20yo. Hand signalling is just fine with them. Just wondering????????? __________________ "Slack" - a state of being in which everything flows smoothly.....a frame of mind so at ease that the universe naturally cooperates.

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04-01-2010, 07:03 AM	#3
Shinglejohn Registered Member Join Date: Jul 2008 Location: Cleveland, OH Posts: 73	Both leads are black, how do i determine which is the ground?

04-01-2010, 12:03 PM	#8
Shinglejohn Registered Member Join Date: Jul 2008 Location: Cleveland, OH Posts: 73	I dont know what the DOT policy is, but id prefer not to hand signal. Besides most non-riding drivers dont understand hand signals. Its hard enough to ride in the city with out being hit by cell phone users.

04-01-2010, 05:21 PM	#9
12er Founding Member Join Date: Nov 2001 Location: SF Posts: 2,702	"why is he waving at me?" "I'll just go around him on the right."