EVO All Evo Model Discussion

Headlight acting weird

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Old Jun 3, 2014 | 03:27 PM
  #11  
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Originally Posted by jimbo285
Does it stay steady if you idle up or add throttle?

No.....
 
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Old Jun 3, 2014 | 03:44 PM
  #12  
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I know if my ignition switch isn't just right it lights will flicker.
 
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Old Jun 3, 2014 | 03:49 PM
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You might wanna pull the connector block on the back of the head light, the one that actually fits to the headlight. They get loose and spark and then melt the ground terminal.

That and slap your light switch during the flickering. Its behaving like a loose contact.
 
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Old Jun 3, 2014 | 03:54 PM
  #14  
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Originally Posted by 92Fatty
I know if my ignition switch isn't just right it lights will flicker.

Mine too but it did it to all the lights not just the head light.

Like I said it is very weird.

Right now my best guess is that there is a loose connection inside the sealed beam headlight that makes a good connection when it gets hot.

I fully intend on going through all connections and grounds the next time I take her apart.
 
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Old Jun 3, 2014 | 03:57 PM
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Originally Posted by Spanners39
You might wanna pull the connector block on the back of the head light, the one that actually fits to the headlight. They get loose and spark and then melt the ground terminal.

That and slap your light switch during the flickering. Its behaving like a loose contact.

If it was that wouldn't it kill the headlight all together?
 
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Old Jun 3, 2014 | 04:03 PM
  #16  
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Originally Posted by texashillcountry
If it was that wouldn't it kill the headlight all together?
Nah, they flicker just like that as it makes an on-off-on-off connection with the vibration.
 
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Old Jun 3, 2014 | 04:13 PM
  #17  
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Just guessing:
You have a broken wire that barely connects when cold?
Engine warms up, wire expands and makes better connection?
Stick bike in meat locker overnight and see if lamp lights at all tomorrow morning.
 
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Old Jun 3, 2014 | 04:37 PM
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Originally Posted by Frostbite
Just guessing:
You have a broken wire that barely connects when cold?
Engine warms up, wire expands and makes better connection?
Stick bike in meat locker overnight and see if lamp lights at all tomorrow morning.
I would if I could.
 
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Old Jun 3, 2014 | 04:37 PM
  #19  
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Originally Posted by Spanners39
Nah, they flicker just like that as it makes an on-off-on-off connection with the vibration.
That part I get but why only when it is cold?
 
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Old Jun 3, 2014 | 05:05 PM
  #20  
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Originally Posted by texashillcountry
I would agree with both of these if it was doing it all the time but it only does it on first start up.
It stays on the rest of the day with no problems.

My first thought was a bad ground but that doesn't make sense either.

If it were any of the above it would do it all the time and that is not what is happening.
That's the odd thing. Mine would only act up when the bike was first started, too. Never DURING a ride. In any case, it's something to check and costs nothing but a bit of time.

I didn't think it would fix my bike either, for the same reason, but it did. Sometimes logic doesn't seem to apply when hunting electrical gremlins in a Harley.
 

Last edited by Uncle G.; Jun 3, 2014 at 05:11 PM.
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