Ground wire on upper tripple tree to Riser Bolt...DO I NEED IT?
#31
04-22-2010 | 07:12 PM
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Joined: Dec 2007
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From: U.S.A.
Wow! Never expected a class in electricity 101, but thanks.
I've verified the turn signals work, and no electrical problems running without the wire so far.
I'm buying into the idea about the grounding wire taking the static travel instead of through the bearings in the neck.
But, The way I think they have it set up (I can't remember) is the small screw on one end goes in the front of the top tree, and the other larger end goes with the riser bolt, still on the upper tree. How would that do anything when you are grounding one end of the same piece of metal to the other?? Or is that not where the connections go?
I've verified the turn signals work, and no electrical problems running without the wire so far.
I'm buying into the idea about the grounding wire taking the static travel instead of through the bearings in the neck.
But, The way I think they have it set up (I can't remember) is the small screw on one end goes in the front of the top tree, and the other larger end goes with the riser bolt, still on the upper tree. How would that do anything when you are grounding one end of the same piece of metal to the other?? Or is that not where the connections go?
#32
04-22-2010 | 08:52 PM
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Joined: May 2006
Posts: 10,815
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From: Virginia
I really surprised we're debating this....
I removed mine well over a year ago. I have had zero issues because of it.
Someone mentioned "you need it if you have your bars internally wired". Explain this one to me because mine are internally wired and I don't have that wire connected to the trees.
This is like the silly rainsock debate.
I removed mine well over a year ago. I have had zero issues because of it.
Someone mentioned "you need it if you have your bars internally wired". Explain this one to me because mine are internally wired and I don't have that wire connected to the trees.
This is like the silly rainsock debate.
#33
04-22-2010 | 09:20 PM
Road Master
Joined: Jul 2005
Posts: 916
Likes: 3
From: Mauldin, SC
The black wire is there to bond the handlebar, risers, switch housings and anything else metal up there to the top triple tree because all this stuff is insulated from the top triple tree, and ground, by the riser bushings. If your bushing cups are touching the triple tree, either they're not installed correctly, the bushings are shot or you overtorqued the bolts.
The black wire has nothing to do with the turn signals or headlight. The lights on a Dyna have their own dedicated grounded conductor (thank you 8541hog), so they do not rely on the chassis to complete their circuit back to battery negative.
The switch housings do not have a grounded or grounding conductor connected to them.
The black wire has nothing to do with preventing current flow through the fork stem bearings. The black wire connects the top triple tree to a riser bolt...they're both on the same side of the bearings.
If you disconnect the black wire and pinch one wire, say the switched side of a turn signal switch, such that copper touches metal, nothing bad happens and you never know it. Now, you pinch another wire, maybe the switched side of the starter switch. Guess what happens when you press the turn signal switch.
It's common practice to design control circuits so that one such failure will cause a fuse to open or a breaker to trip. If this is not done, two such failures can cause unintended action.
The black wire has nothing to do with the turn signals or headlight. The lights on a Dyna have their own dedicated grounded conductor (thank you 8541hog), so they do not rely on the chassis to complete their circuit back to battery negative.
The switch housings do not have a grounded or grounding conductor connected to them.
The black wire has nothing to do with preventing current flow through the fork stem bearings. The black wire connects the top triple tree to a riser bolt...they're both on the same side of the bearings.
If you disconnect the black wire and pinch one wire, say the switched side of a turn signal switch, such that copper touches metal, nothing bad happens and you never know it. Now, you pinch another wire, maybe the switched side of the starter switch. Guess what happens when you press the turn signal switch.
It's common practice to design control circuits so that one such failure will cause a fuse to open or a breaker to trip. If this is not done, two such failures can cause unintended action.
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