LED Turn Signal, Brake/Tail &running light conversion - Honda Rebel Forum
 6Likes
Reply
 
Thread Tools Display Modes
post #1 of 227 Old 05-18-2011, 08:35 PM Thread Starter
Moderator
 
Buickguy's Avatar
 
Join Date: Mar 2010
Location: Michigan, near Ann Arbor
Posts: 17,771
Garage
LED Turn Signal, Brake/Tail &running light conversion

In my quest for saving electrical power for running some of my favorite goodies, I decided to do an LED conversion.
I had changed my front signals in '88 to three wire turn/running lights so I
purchased two amber 1157 LED and two amber 1156 LED bulbs as well as a red 1157 LED for the tail/brake.

Converting the brake/tail was a simple plug and ply operation.
The signals was another issue. I changed out the flasher for an electronic one. Car Quest had one on the shelf. Simple plug and pay there.
Putting the rear 1156 in was also straight forward. Had I left the incandescent bulbs up front, I could have called it good right there. Putting the 1157 LED bulbs up front, I had the notorious four light flash. I had though about doing a two indicator system but decided to try an LED indicator bulb. A quick run up to Auto Zone for a pack of 194 LED bulbs solved the cross connection issue.



If I had the OE front signals it would have been finished but the 1157 LED bulbs threw me yet another curve. With the running lights the signals did not want to flash. They would modulate but not fully flash.
When I disconnected the wires for the front running lights there was no improvement. I noticed that if I grounded the running light wires from the front signals the signals would flash correctly.
That's all well and good but I like my front running lights.
After studying the schematic for the Rebel I decide to install a relay so I could have my running lights. I chose under the seat for the relay.
Radio Shack micro relay part number 275-241 looked to be a good choice. Tiny and robust it would tuck easily in to the area above the airbox under the seat. Soldering on the connections isn't for the faint of heart but the compact relay was worth the effort.


Putting a nice shrink wrap conduit with the two running light wires in it, the run along the main harness was very easy. I tapped in to the tail light circuit at the fender harness connection and also tapped in to both signals.
Powering the relay meant using the taps from both sides of the turn signal.
To prevent back feed and end up with the four flashing signal problem again, a pair of diodes for the relay power made for a quick and easy fix. I used 3 amp rectifier diodes from Radio Shack part number 276-1141 . They come two in a pack and two is what I needed.

When the signals are on, the relay connects the two running light wires to ground. The signals and indicator function just as they should.
When the signal is canceled, the relay switches back to the lower output front running lights powered by the tail light wire.


Since the 194 LED bulbs came in a two pack, I replaced the neutral indicator with the second one from from the pack.
The only downside with that is the amber 194 LED bulb in the neutral indicator is the amber shows through the green lens.
Still, that's livable.
The relay has a slight capacitance in its energizing coil, just enough so that it will stay latched during operation as long as the battery voltage and charging system voltage are at good.
One side effect of the relay is if battery voltage drops, the relay starts to click with the flasher blinking the opposite side running light.
I just figure I'll use that to judge my power draw when using heated gear!



Attached Images
File Type: jpg 194a.jpg (19.6 KB, 4103 views)
File Type: jpg Relay-RadioShack 275-241.jpg (5.3 KB, 4082 views)
File Type: jpg Diode,3amp:RadioShack-2761141.jpg (2.0 KB, 2198 views)

1987 CMX250C Rebel
2002 FSC600 SilverWing
1983 Yamaha Midnight Virago XV920MK
Put your bike's year and size in your signature.
It helps others help you.

Buickguy is offline  
Sponsored Links
Advertisement
 
post #2 of 227 Old 05-19-2011, 12:26 AM Thread Starter
Moderator
 
Buickguy's Avatar
 
Join Date: Mar 2010
Location: Michigan, near Ann Arbor
Posts: 17,771
Garage
Here is the schematic and physical pinout for the relay circuitry.



Attached Images
File Type: jpg Relay wiring.jpg (27.7 KB, 151 views)

1987 CMX250C Rebel
2002 FSC600 SilverWing
1983 Yamaha Midnight Virago XV920MK
Put your bike's year and size in your signature.
It helps others help you.

Buickguy is offline  
post #3 of 227 Old 05-19-2011, 01:57 AM
 
Guba's Avatar
 
Join Date: Aug 2008
Location: Creston, Ohio
Posts: 5,930
I love it BG!!!

As a side note, I'm still waiting on my Powerlet stuff.

MC.com ruined this forum

Silver '86 450
Black '00 250
Red '07 250
Guba is offline  
 
post #4 of 227 Old 05-19-2011, 02:09 AM Thread Starter
Moderator
 
Buickguy's Avatar
 
Join Date: Mar 2010
Location: Michigan, near Ann Arbor
Posts: 17,771
Garage
Thank Guba.
I got the urge while chasing down the tail/brake light gremlin that hit on the spring ride.
I should have thought it out a little more. I ordered from SuperBright and those are nice pieces. If I had thought about the indicator I would have ordered one from them in amber and another in green for the neutral. I should have also thought about the plate light, gauge light and high beam indicator, basically making everything LED except the headlight.

I don't know why the Powerlet stuff hasn't come n for you.
My local BMW dealer has a large display with all their stuff.




1987 CMX250C Rebel
2002 FSC600 SilverWing
1983 Yamaha Midnight Virago XV920MK
Put your bike's year and size in your signature.
It helps others help you.

Buickguy is offline  
post #5 of 227 Old 05-19-2011, 10:40 AM
 
Guba's Avatar
 
Join Date: Aug 2008
Location: Creston, Ohio
Posts: 5,930
Powerlet stuff was sold by Crooked River Cycles, but they changed their name to Northern Ohio Ducati Triumph. As a result the Powerlet distributor needed them to open a new account. At least that's what they tell me.

MC.com ruined this forum

Silver '86 450
Black '00 250
Red '07 250
Guba is offline  
post #6 of 227 Old 05-19-2011, 11:39 AM
 
cagie's Avatar
 
Join Date: Jan 2009
Location: South Central PA
Posts: 5,770
Garage
elegant solution. thanks for sharing.

Comments contained in my posts are not intended to cause physical or psychological stress and are mearly my two cents worth, and in this economy, that's cheap!

Midnight Venture - Black Lithium II...
cagie is offline  
post #7 of 227 Old 05-19-2011, 11:44 AM
Moderator
 
Join Date: Aug 2008
Location: Monroe, Louisiana
Posts: 28,301
Shoul that be a sticky in a closed thread?

Keepin' all the left over parts. Gonna use 'em to build another bike!

'01 & '09 Rebel 250, '06 Ninja 250, '89 VN 750
Putting your bike year and model in your signature helps others help you!
Here's how: https://www.hondarebelforum.com/f19/...re-121087.html
flitecontrol is offline  
post #8 of 227 Old 05-19-2011, 04:59 PM Thread Starter
Moderator
 
Buickguy's Avatar
 
Join Date: Mar 2010
Location: Michigan, near Ann Arbor
Posts: 17,771
Garage
That's up to you guys, If you think it should be sticky, great.




1987 CMX250C Rebel
2002 FSC600 SilverWing
1983 Yamaha Midnight Virago XV920MK
Put your bike's year and size in your signature.
It helps others help you.

Buickguy is offline  
post #9 of 227 Old 05-19-2011, 05:04 PM Thread Starter
Moderator
 
Buickguy's Avatar
 
Join Date: Mar 2010
Location: Michigan, near Ann Arbor
Posts: 17,771
Garage
I took some photos of the Relay installed under the seat.
The relay is covered in a bit of shrink tube to enhance its water resistance.
I did my best to stay with the Honda color coding.



I put a bit of hot glue on just to keep it in place and cut down on vibration.





Attached Images
File Type: jpg Relay.jpg (46.2 KB, 2147 views)
File Type: jpg Relay Glued.jpg (22.3 KB, 2136 views)

1987 CMX250C Rebel
2002 FSC600 SilverWing
1983 Yamaha Midnight Virago XV920MK
Put your bike's year and size in your signature.
It helps others help you.

Buickguy is offline  
post #10 of 227 Old 05-19-2011, 05:27 PM
 
88nightrider's Avatar
 
Join Date: Oct 2010
Location: Norway
Posts: 1,727
Grate writeup
Quote:
Originally Posted by Buickguy View Post
The relay is covered in a bit of shrink tube to enhance its water resistance
I would recommend Plasti Dip for that purpose. But shrink tubing works too. Was is the kind with glue on the inside?

Any advice, tips or suggestions I make is my belief. So I take no responsibility if something goes wrong while someone is following them!
97 Honda Rebel CA125
Put your bike's year and size in your signature (<-- Link)
It helps others help you
88nightrider is offline  
Reply

Tags
1st gen elec. test #214, led turn signals

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Honda Rebel Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in











Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may post new threads
You may 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 Off

 
For the best viewing experience please update your browser to Google Chrome