H4 Headlight Relay - Stromtrooper Forum : Suzuki V-Strom Motorcycle Forums
DL650A - 2012-2016 DL650A 2012-2016 (L2-L6)

Reply
 
LinkBack Thread Tools Display Modes
post #1 of 11 Old 10-12-2013, 07:35 PM Thread Starter
Stromthusiast!
 
JohnnyReb's Avatar
 
Join Date: Jun 2013
Location: Lockhart,Fl.
Posts: 119
H4 Headlight Relay

Is this really needed on a bone stock bike,,,,meaning the bike has no electrical add ons such as additional lights. Eastern Beaver seems to think so. Just wondering how many are installing this headlight relay.

2013 DL650
You are never lost,
just temporarily misplaced.
JohnnyReb is offline  
Sponsored Links
Advertisement
 
post #2 of 11 Old 10-12-2013, 08:07 PM
Stromthusiast!
 
Join Date: Jan 2013
Location: Peoria, Illinois
Posts: 1,177
Sadly, yes. It would cost Suzuki very little to do it right but that's what we get with a budget bike. Full headlight current goes thru the switch instead of relays. Switches will burn up eventually at a high failure rate. I think there's a survey somewhere here with numbers. I'm adding relays to our 2012's as one of this winter's projects.

Sent from Motorcycle.com Free App
dkayak1 is offline  
post #3 of 11 Old 10-12-2013, 08:30 PM
FORUM GODFATHER.....R.I.P. PAT
 
greywolf's Avatar
 
Join Date: Jan 2006
Location: Evanston IL USA
Posts: 38,049
Garage
Stromtrooper Forum : Suzuki V-Strom Motorcycle Forums - View Poll Results

I'd recommend relays for brighter lights and longer lasting contacts and connectors.

Pat- 2007 DL650A was ridden to all 48 contiguous states. I didn't quite make it to 17,000 miles on the 2012 DL650A.
Nicknames I use to lessen typing, Vee = 2002-2012 DL1000s. Vee2=2014-2016 DL1000s. Wee = 2004-2011 DL650s. Glee = 2012-2016 DL650s
See https://www.stromtrooper.com/general-...nicknames.html

Please vote in the poll on what Strom(s) you have at https://www.stromtrooper.com/informat...-you-have.html
greywolf is offline  
 
post #4 of 11 Old 10-13-2013, 10:39 AM
Stromthusiast!
 
Join Date: Sep 2013
Location: Alberta Canada
Posts: 172
You normally only put a relay into a circuit to protect the switch because the manufacturer can then build the headlight switch with lighter components and save some money.

If the manufacture builds the switch to handle the current draw of the stock headlights than there is really no issue.

Nothing wrong with putting a relay in the circuit if you want, but its not really necessary if you are staying with stock lighting. If you up that then a relay would make sense.

Heck my 71 BMW R bike doesn't even have any fuses, let alone a headlight relay and all the switches still work fine.

It boils down to the design of the electrical system.
cycleman is offline  
post #5 of 11 Old 10-13-2013, 10:42 AM
Stromthusiast!
 
Join Date: Jan 2013
Location: Peoria, Illinois
Posts: 1,177
Quote:
Originally Posted by cycleman View Post
If the manufacture builds the switch to handle the current draw of the stock headlights than there is really no issue.
Quite true and well said. The problem is that Suzuki did not.


Sent from Motorcycle.com Free App
dkayak1 is offline  
post #6 of 11 Old 10-13-2013, 10:53 AM
FORUM GODFATHER.....R.I.P. PAT
 
greywolf's Avatar
 
Join Date: Jan 2006
Location: Evanston IL USA
Posts: 38,049
Garage
I've worked on an R75/5 Beemer. The electrical system is not great. The headlight has less power than one V-Strom headlight.

Pat- 2007 DL650A was ridden to all 48 contiguous states. I didn't quite make it to 17,000 miles on the 2012 DL650A.
Nicknames I use to lessen typing, Vee = 2002-2012 DL1000s. Vee2=2014-2016 DL1000s. Wee = 2004-2011 DL650s. Glee = 2012-2016 DL650s
See https://www.stromtrooper.com/general-...nicknames.html

Please vote in the poll on what Strom(s) you have at https://www.stromtrooper.com/informat...-you-have.html
greywolf is offline  
post #7 of 11 Old 10-13-2013, 11:17 AM
$tromtrooper
 
tmcgee's Avatar
 
Join Date: Oct 2006
Location: Braintree, Massachusetts
Posts: 8,025
Quote:
Originally Posted by greywolf View Post
I'd recommend relays for brighter lights and longer lasting contacts and connectors.
Shorter bulb life too, at least that's how it was on my '07 and '05 -- haven't had the relays installed on the '12 for more than a few months, so dunno about those bulbs yet.

-Tom (DL650AL2) (KA1TOX) (E-I-E-I-O)

This message and images are licensed under the Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License. http://creativecommons.org
tmcgee is offline  
post #8 of 11 Old 10-13-2013, 12:41 PM
$tromtrooper
 
chicago's Avatar
 
Join Date: Oct 2009
Location: bishop, CA
Posts: 3,359
Plenty of reports here of people having issues with their lights traced to damaged connectors and/or switches. Some have no issues. Installing a relay would take the load off these components. I think of it as cheap insurance.

Re shorter bulb life.....true no doubt though it hasn't been an issue for me in thousands of miles.

Last edited by chicago; 10-13-2013 at 12:45 PM.
chicago is offline  
post #9 of 11 Old 10-14-2013, 08:04 PM
Stromthusiast!
 
Join Date: Sep 2013
Location: Alberta Canada
Posts: 172
There seems to be some confusion on what a relay actually is.

On a relay you will have a main voltage say 20 amp coming into one pin of the relay, (we'll call this pin 1) , and then another pin that goes to the headlight, horn or whatever is going to be the source, ( we'll call this pin 2). You will have 2 other pins, one goes to the switch ( pin 3 ) and the other ( pin 4 ) likely goes to ground. When you push the light button, starter button, horn etc ( pin 3 ) it sends it to ground which completes the circuit and then allows current to flow between pins 1 & 2 ),.

Another good example of this is on a water cooled engine ( including motorcycles that have a fan ). When the temp sensor in the block, rad or wherever it is, reaches its set temperature range, then it closes the circuit ( shorts it to ground ) and the fan will start. Most if not all of these temperature sensors are protected by a relay of some description.

A properly designed switch, and I don't believe that Suzuki or any other manufacture would design a switch that wouldn't handle its rated load, is not going to cause problems. In the example of the fan switch above the stock fan sensor was designed ( this was a first generation gold wing ) to handle the current draw and rarely ever caused a problem. If you wanted to use a car type sensor ( different temp range etc ) then you had to protect it with a relay, otherwise it would fail. The reason was that it was not designed to operate at the high current draw of the the fan motor. However the stock gold wing temp sensor was.

There are many good examples on the web of relays and how they work for those that are interested.
cycleman is offline  
post #10 of 11 Old 10-14-2013, 08:08 PM
FORUM GODFATHER.....R.I.P. PAT
 
greywolf's Avatar
 
Join Date: Jan 2006
Location: Evanston IL USA
Posts: 38,049
Garage
Here are some people who would argue the stock design is lacking. https://www.stromtrooper.com/informat...e-problem.html

Pat- 2007 DL650A was ridden to all 48 contiguous states. I didn't quite make it to 17,000 miles on the 2012 DL650A.
Nicknames I use to lessen typing, Vee = 2002-2012 DL1000s. Vee2=2014-2016 DL1000s. Wee = 2004-2011 DL650s. Glee = 2012-2016 DL650s
See https://www.stromtrooper.com/general-...nicknames.html

Please vote in the poll on what Strom(s) you have at https://www.stromtrooper.com/informat...-you-have.html
greywolf is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Stromtrooper Forum : Suzuki V-Strom 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:
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










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 On
Pingbacks are On
Refbacks are On

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