Headlamps go out? - Wrist Twisters
 
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post #1 of 16 Old 12-05-2012, 01:25 PM Thread Starter
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Headlamps go out?

For some reason, and this has been happening ever since I bought the bike, occasionally the headlamp(s) wont come on, sometimes a little revs fix it, or sometimes turning on and off. I feel like it's about time I actually did a little investigation/help asking.

Headlight gremlin - YouTube

I am wondering if this is a known issue. Also, this had been going on pre-installation of the duals.

Any ideas?

I thought that it might be related to some sort of sticking starter button, but that hasnt happened until recently...I dunno, need some input.

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post #2 of 16 Old 12-05-2012, 01:27 PM
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Do a.search here, it is a known issue with the 919. IIRC, it's a connection at the starter switch or kill.switch.

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post #3 of 16 Old 12-05-2012, 01:34 PM
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+1 ^

Had this happen multiple times. If you flick the starter switch a few times, it should come on. Check the connections along with the spring under the contacts to make sure it's coming back up fully when you push the switch. If you've ridden in the rain recently you might have gotten water in there, a good dose of WD40 while working the switch would do some good.

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post #4 of 16 Old 12-05-2012, 03:51 PM
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It's the contacts in the starter switch. It shuts off the headlight while you start the bike. Happened to me. Cleaned the contacts in the switch, problem solved.

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post #5 of 16 Old 12-05-2012, 03:58 PM
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Typical honda start/kill switches issues. At least you're able to start the bike still lol.

Do follow up like andrew and rmb have pointed out and your trouble will go away.

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post #6 of 16 Old 12-05-2012, 04:27 PM
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Quote:
Originally Posted by H919rider View Post
. Cleaned the contacts in the switch, problem solved.

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post #7 of 16 Old 12-05-2012, 04:39 PM Thread Starter
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Quote:
Originally Posted by Bigdaa View Post

Do not use sand paper!!!!! Residue will turn into glass and form a perfect insulator. Use jeweler files.
Roger! Don't have those though...

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post #8 of 16 Old 12-06-2012, 12:18 AM
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Bypass that switch, so the headlight is always on. It caused me and others nothing but trouble. It's a bitch to disassemble and solder to have break again and again.

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post #9 of 16 Old 12-06-2012, 10:15 AM
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Quote:
Originally Posted by Bigdaa View Post
Do not use sand paper!!!!! Residue will turn into glass and form a perfect insulator. Use jeweler files.
Did not know that, thanks!!! Stored for later reference.

Where would one find jeweler files?

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post #10 of 16 Old 12-06-2012, 02:08 PM
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Quote:
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Did not know that, thanks!!! Stored for later reference.

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post #11 of 16 Old 12-06-2012, 02:56 PM Thread Starter
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Quote:
Originally Posted by rockdog32 View Post
Bypass that switch, so the headlight is always on. It caused me and others nothing but trouble. It's a bitch to disassemble and solder to have break again and again.
Is a bybass easily achieved? Will that not put undue stress on the system? Curious as to how to do it.

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post #12 of 16 Old 12-06-2012, 03:18 PM
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Quote:
Originally Posted by rockdog32 View Post
Bypass that switch, so the headlight is always on. It caused me and others nothing but trouble. It's a bitch to disassemble and solder to have break again and again.
do this... i got fed up with having the soldering come undone... left me stranded at night (talk about scary)

heres my thread on the subject. Had it setup like that for over a year with zero issues. OH and my 04 919 still has the stock battery.


https://www.wristtwisters.com/forums/...ons-28152.html


No undue issues with having the headlight on while cranking the motor.... if your battery cant handle the extra very nominal 5ish amp draw while trying to crank the starter your battery needs to be replaced anyways.

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post #13 of 16 Old 06-24-2013, 02:39 PM
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For the first time, last night my light momentarily went out..... I think I know what to do next. Definitely gonna bypass that switch right away. I don't want to be messing with that again.

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post #14 of 16 Old 06-24-2013, 03:30 PM
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Glad this was brought up. My 919 has done exactly this, several times as well; glad to know it's likely cause and fix.

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post #15 of 16 Old 06-24-2013, 03:51 PM
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Quote:
Originally Posted by nd4spdbh View Post
do this... i got fed up with having the soldering come undone... left me stranded at night (talk about scary)

heres my thread on the subject. Had it setup like that for over a year with zero issues. OH and my 04 919 still has the stock battery.


https://www.wristtwisters.com/forums/...ons-28152.html


No undue issues with having the headlight on while cranking the motor.... if your battery cant handle the extra very nominal 5ish amp draw while trying to crank the starter your battery needs to be replaced anyways.
Had this happen to me last year. The bypass is simple and solved the problem. No further issues.

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post #16 of 16 Old 06-24-2013, 09:32 PM
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I did a little flicking the starter switch tonight. I was able to get it to no light and then back to light. I am pretty confident in the fault. This will be my first ever "repair" of the 919. Not bad for 3 years.... Gotta wait a couple weeks. Moving sucks!

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