Single Point Grounding your Electrics - Triumph Forum: Triumph Rat Motorcycle Forums
» Main Menu

Discussion Forums
 » Twins
 » Tiger
 » General
 » RAT

Features
 » Blogs

Motorcycle.com Links

Contribute
 » Photo

Motorcycle Forums
» Insurance
» Sponsors
» Our Partners
»ATV Reviews
»Motorcycle Games

Vintage Technical Tips & Tricks Technical and maintenance tips and links. DO NOT POST YOUR QUESTIONS HERE!! Please post questions to the general forum.

Reply
 
LinkBack Thread Tools Display Modes
Old 12-30-2009, 11:56 AM   #1 (permalink)
Senior Member
Formula Extreme
Main Motorcycle: 1968 Triumph Bonneville
 
Join Date: Mar 2009
Location: Raleigh, N. Carolina via Brighton, England
Posts: 769
Other Motorcycle: 2008 Harley Fat Bob
Single Point Grounding your Electrics

Hi all,
I'm posting this to give anyone who's interested in my experience with getting my 68 Bonneville wired to Single Point Grounding.

First, why did I do this?
1. I didnt want to grind off all the grounding points on my bike for the ground wires (6 or so different points). I just had my frame powder coated!
2. From what i understand, positive grounding encourages corrosion of the grounding points--a major problem for electrics.
3. Simiplification. I know now exactly where my ground is. Its in one spot!

I ran new 14 guage red wire from all my components that either previously didnt have one (e.g. tach lights, horn) or were grounded to the frame. It was very messy at first and I wasnt sure if i was doing the right thing. But, once I'd cable tied it all up it looked fantastic. Youll see in my pics the red wires are not taped. I will probaby tape it all up once the bike has been running a few months and i know the electics are solid. Right now all the lights work and im getting power to the ignition system. So, i should be good to go once i get the engine in and hook up the alternator.

Would I use this approach again? Absolutely. If you have the time I definately recommended this approach.

I got all the info I needed from this excellant paper from GAMBA:
http://www.gabma.us/elec/proper_grounding.pdf


Cheers, Kev

P.S. heres a few pics but you can see my entire restoration pics here:
http://picasaweb.google.com/KevsPics...nneville_1968#





Kev_England is offline   Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Old 12-30-2009, 12:59 PM   #2 (permalink)
Lifetime Premium
Site Supporter
SuperSport
Main Motorcycle: 1977 T140V
 
Ohio-Rider's Avatar
 
Join Date: Jan 2009
Location: North East Ohio
Posts: 963
Other Motorcycle: 1949 Ariel SQ4
Extra Motorcycle: 1945 WL (Civilian)
That looks great Kevin. Thanks for sharing. I intend to go the same route with my 77 in a few weeks. I bought a new harness and I'm hoping it has a few extra wires I can use to do that single grounding. Yours sure looks nice and neat and orderly. -Steve
Ohio-Rider is offline   Reply With Quote Quick reply to this message
Old 12-30-2009, 01:01 PM   #3 (permalink)
Senior Member
World SuperBike
Main Motorcycle: 1970 Bonneville
 
Join Date: Jun 2009
Location: Dearborn, Michigan
Posts: 2,148
Kev,

I've been thinking about doing this. Thanks for the detailed post! I am a bit concerned about adding that much wire though. More opportunity for chafing and pinching.

Have you considered installing a fuse block to separate circuits? I like the concept of separating lighting from ignition so if a lighting circuit shorts, the engine will continue to run. I've been researching this a bit and have found little information.

Henry
henryanthony is offline   Reply With Quote Quick reply to this message
Old 12-30-2009, 01:26 PM   #4 (permalink)
Senior Member
Formula Extreme
Main Motorcycle: 1968 Triumph Bonneville
 
Join Date: Mar 2009
Location: Raleigh, N. Carolina via Brighton, England
Posts: 769
Other Motorcycle: 2008 Harley Fat Bob
Thanks guys.

Henry: yes, I was a bit concerned when I started addding the wires. But think of it this way: Triumph did this method later anyway, (Norton already was because of the rubber engine mounts). Also, it will look a lot less messy when I tape it up. Like I said, Ill do that when Im 100% sure everything is solid.

As for fusing the circuits. Im not too bothered about it really. My 68 electrics arent all the complicated (well, now that Ive stripped them down twice and reassembled!). Especially since Im going EI and Sparx alternator. Those 2 circuits will effectively be off the main harness anyway. So, the main harness is basically just all the lights. Now, if my Ignition and alternator were still on the main harness I probably would go with a 3-way fuse system.

Just another comment: if you go this way have some patience, it took me several goes on some of the wires to get just the right length. So, buy extra wire!!!

Cheers.
Kev_England is offline   Reply With Quote Quick reply to this message
Old 12-30-2009, 01:49 PM   #5 (permalink)
Member
Grand Prix 250
 
Shel's Avatar
 
Join Date: Sep 2009
Posts: 56
I have spg on both bikes. I don't like the idea of using the frame as a ground. Looking good Kev
Shel is offline   Reply With Quote Quick reply to this message
Old 12-30-2009, 08:48 PM   #6 (permalink)
Senior Member
World SuperBike
Main Motorcycle: 1970 Bonneville
 
Join Date: Jun 2009
Location: Dearborn, Michigan
Posts: 2,148
Shel,

As pictured in Kev's post, is not the frame the ground? Or is everything just connected to the + battery terminal and the frame doesn't play into the grounding scheme?

Henry
henryanthony is offline   Reply With Quote Quick reply to this message
Old 12-31-2009, 08:58 AM   #7 (permalink)
Member
Grand Prix 250
 
Shel's Avatar
 
Join Date: Sep 2009
Posts: 56
Henry,
I'm not sure how Kev is doing it but I run a wire from the battery to the spg.
Shel is offline   Reply With Quote Quick reply to this message
Old 12-31-2009, 09:24 AM   #8 (permalink)
Senior Member
Moto Grand Prix
Main Motorcycle: 1995 Daytona 1200
 
SlowPocono's Avatar
 
Join Date: Jul 2006
Location: northeast Pennsylvania
Posts: 2,822
Other Motorcycle: 1979 T140E, '06 Scrambler
Extra Motorcycle: 851 Sprbk, YZF R-1, SV650
Quote:
Originally Posted by henryanthony View Post
Shel,

As pictured in Kev's post, is not the frame the ground? Or is everything just connected to the + battery terminal and the frame doesn't play into the grounding scheme?

Henry
The single point ground is connected directly to the battery. I can see that wire in the picture.
SlowPocono is online now   Reply With Quote Quick reply to this message
Old 12-31-2009, 10:16 AM   #9 (permalink)
Senior Member
Formula Extreme
Main Motorcycle: 1968 Triumph Bonneville
 
Join Date: Mar 2009
Location: Raleigh, N. Carolina via Brighton, England
Posts: 769
Other Motorcycle: 2008 Harley Fat Bob
Yes, its recommended that you run all the wires to a grounding point on the frame close to the battery. The GAMBA paper says the post where the rectifier was situated is perfect. So, I got my dremel and filed all the powder coat off that lug holder and ran a stainless bolt/nut to hold all the ground wires onto it.

And yes, one ground wire then connects that ground point to the battery. It would be too unwieldly to connect 10 or so to the battery, but that would work just fine too.

It may look a bit messy but in real life its not as bad as it looks in the pics.
Kev_England is offline   Reply With Quote Quick reply to this message
Old 12-31-2009, 10:34 AM   #10 (permalink)
Senior Member
World SuperBike
Main Motorcycle: 1970 Bonneville
 
Join Date: Jun 2009
Location: Dearborn, Michigan
Posts: 2,148
OK, great! I think I have a better understanding of this now.
henryanthony is offline   Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Triumph Forum: Triumph Rat Motorcycle Forums forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
If you do not want to register, fill this field only and the name will be used as user name for your post.
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter your valid email address, that can receive an automated confirmation message. Otherwise, you won't be able to gain full access.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
77t140v point to point rewire questions abhorred Classic, Vintage & Veteran 6 10-22-2009 03:22 PM
TB Grounding problem highcard Hinckley Classic Triples 3 05-27-2007 05:42 PM
Temperature Light Grounding Problem MarkinDC Hinckley Classic Triples 2 07-30-2006 11:39 AM
Temperature Light Annoyance/Grounding MrDonough Maintenance & Workshop Talk 0 08-27-2004 10:34 AM
Grounding Ingition System? Beemie Hinckley Classic Triples 2 07-18-2004 05:20 PM

Powered by vBadvanced CMPS v3.2.2

All times are GMT -4. The time now is 08:06 AM.



Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Motorcycle News, Videos and Reviews
Honda Grom Forum Harley Davidson Forum Honda 600RR Forum Kawasaki Forum Yamaha R6 Forum Yamaha FZ-09 Forum
1199 Panigale Forum Roadglide Forum Honda CBR1000 Forum Vulcan Forum Yamaha R1 Forum Yamaha R3 Forum
Ducati Monster Forum Harley Forums Honda CBR250R Forum ZX10R Forum Star Raider Forum Yamaha Viking Forum
Suzuki GSXR Forum V-Rod Forums Honda Shadow Forum Kawasaki Motorcycle Forum Star Warrior Forum KTM Duke 390 Forum
SV650 Forum BMW S1000RR Forum Honda Fury Forum Kawasaki Versys Forum Drag Racing Forum Ducati 899 Panigale Forum
Suzuki V-Strom BMW K1600 Triumph Forum Victory Forums Sportbikes BMW NineT Forum
Volusia Forum BMW F800 Forum Triumph 675 Forum MV Agusta Forum HD Street Forum Suzuki GW250 Forum
Yamaha Motorcycles Victory Gunner Forum Honda Vultus Forum HD LiveWire Forum Ninja H2 Forum Ducati Scrambler Forum Kawasaki Ninja 250SL Forum

Garage Plus vBulletin Plugins by Drive Thru Online, Inc.