BritBike Forum logo
BritBike Sponsor BritBike Sponsor BritBike Sponsor
BritBike Sponsor

BritBike Sponsor

BritBike Sponsor
BritBike Sponsor BritBike Sponsor BritBike Sponsor
JWood Auctions JRC Engineering dealers JWood Auctions
Home | Sponsors, Newsletter | Regalia | Calendar | Bike Project | BritBike Museum | Spiders Cartoons, "OLD" BritBike Forum | DVD- Manuals & Parts books | BritBike Stickers & Decals
Upgrade to: Premium Membership | Premium Life Membership | Vendor Membership | Site Sponsor Membership
Member Spotlight
CaptainPugwash
CaptainPugwash
Conisbrough,Yorkshire, UK
Posts: 69
Joined: November 2008
Show All Member Profiles 
Shout Box
Search eBay for motorcycle parts in following countries
Australia, Canada, France, Holland, Italy, United Kingdom, USA
Random Gallery photo
Who's Online Now
19 registered members (dean toensing), 152 guests, and 378 spiders.
Key: Admin, Global Mod, Mod
Newest Members
Konaflyer, Begbie, Andrew Fallo, Zack Banks, 1966g10
10418 Registered Users
Top Posters(30 Days)
btour 89
Rohan 81
Triless 78
reverb 75
Popular Topics(Views)
710,176 mail-order LSR
Forum Statistics
Forums34
Topics68,305
Posts665,020
Members10,418
Most Online3,995
Feb 13th, 2017
Like BritBike.com on Facebook

Previous Thread
Next Thread
Print Thread
Rate Thread
Page 2 of 2 1 2
Re: 1969 Triumph Bonneville Tail Light Ground [Re: Stuart] #671197
10/16/16 5:21 pm
10/16/16 5:21 pm
Joined: Sep 2013
Posts: 1,733
Pacific northwest
Q
quinten Offline
BritBike Forum member
quinten  Offline
BritBike Forum member
Q

Joined: Sep 2013
Posts: 1,733
Pacific northwest

The ET igniton has 2 distinct and separate power supplies ,
Originating from seperate stator coils ,
feeding
the 2 separate filaments in the taillight bulb .

They then share a single common earth path .

If the taillight lights
And the brake light does not ,

It is not the original common fender/frame earth path ... or the wire you added
... that is/was at fault .

Look for the problem in
1. The power supply (stator coils )
2. The wiring
3. Bulb holder
Or
4. The brake switch

To test the stator ,Jumper a wire from the stator wire
directly to the brake filiment .
If that works , the problem lies somewhere in between .

.

Support Your #1 BritBike Forum!

Check out British motorcycles for sale:
British Motorcycles on e-Bay UK, British motorcycles on e-Bay North America
Check out British motorcycles for sale:
British Motorcycles on e-Bay UK, British motorcycles on e-Bay North America
Re: 1969 Triumph Bonneville Tail Light Ground [Re: quinten] #671216
10/16/16 8:13 pm
10/16/16 8:13 pm
Joined: Jun 2002
Posts: 10,239
Scotland
S
Stuart Offline
BritBike Forum member
Stuart  Offline
BritBike Forum member
S

Joined: Jun 2002
Posts: 10,239
Scotland
Hi Quinten,

Originally Posted By quinten
The ET igniton has 2 distinct and separate power supplies
They then share a single common earth path

Up to now, I have deliberately avoided mentioning "earth" (or 'ground'), because a) Rick is a relative newbie and b) ET electrics are AC so there isn't any "earth" (no DC distinct 'supply' and 'return').

Moreover, if there really were "2 distinct and separate power supplies", the ignition would only work when the brake pedal was depressed, so the lamp was on ...

So well done for clarifying that ... facepalm

Originally Posted By quinten
If the taillight lights
And the brake light does not ,
It is not the original common fender/frame
path
... that is/was at fault

Mmmm ... especially when the brake filament draws three times as much power as the tail filament and we have no idea of the condition of the bike and the components that make up the "fender/frame path" ...

Regards,

Page 2 of 2 1 2

Moderated by  Alan_nc 


Home | Sponsors | Newsletter | Regalia | Calendar | Bike Project | BritBike Museum | Spiders Cartoons | "OLD" BritBike Forum | DVD- Manuals & Parts books | BritBike Stickers & Decals
Upgrade to: Premium Membership | Premium Life Membership | Vendor Membership | Site Sponsor Membership
Powered by UBB.threads™ PHP Forum Software 7.6.2