Headlight not working help needed with wires - Kawasaki Vulcan 750 Forum : Kawasaki VN750 Forums
Electrical
Where does this wire go?
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post #1 of 14 (permalink) Old 01-05-2019, 12:56 PM Thread Starter
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Headlight not working help needed with wires

Hello everyone,

So yesterday my headlight stopped working. so when i got home i looked at the forums in search for an answer.
I checked a couple things. First i checked if the light bulb looked good. and it did, after that i opened the fuse box and all the fuses looked intact.
after that i got a volt meter and checked a Ohm resistance at the 3 points at the back side of the bulb and they all gave a reading of about 1-2 ohms of resistance (see picture 1).

after that i checked each wire coming from the light bulb conector with a ohm meter to the wires that conect to the fuse box and the only wire that gave resistance was the yellow/red one, and the yellow/black and red/black didnt. (see picture 2&3)



Does this mean these 2 wires are broke or can the problem lie somewhere else?

Edit: there is no voltage coming from the conector point for the headlight
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Last edited by Panarock; 01-06-2019 at 11:59 AM.
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post #2 of 14 (permalink) Old 01-05-2019, 03:37 PM
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there are additional connectors under the left side neck cover.. check them as well. there have been reports of dirty/bad connections on them

btw, just for future reference, All the blk/yel wires on the bike are grounds, unless someone has farked with them

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post #3 of 14 (permalink) Old 01-05-2019, 04:16 PM Thread Starter
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Quote:
Originally Posted by michiganteddybear View Post
there are additional connectors under the left side neck cover.. check them as well. there have been reports of dirty/bad connections on them

btw, just for future reference, All the blk/yel wires on the bike are grounds, unless someone has farked with them
Wonderfull! I removed all the conections there and replugged them and that seemed to have worked! Thanks!
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post #4 of 14 (permalink) Old 01-06-2019, 11:58 AM Thread Starter
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Update: Still not working, dont know what to do

Alright, it did work for a little while but then the light went back off again.

I used this multimeter to test the wiring with the setting its on.

Does anyone has any tips?
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post #5 of 14 (permalink) Old 01-06-2019, 12:13 PM
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Could check the charging voltage, just in case. If it's not charging, it won't trigger the headlight relay. Set the meter on 20v DC.

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post #6 of 14 (permalink) Old 01-06-2019, 12:43 PM Thread Starter
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Alright, I know that my stator is bad. one of the 3 coils is not working properly. Can this cause the headlight not turning on?

Edit: I did buy a replacement stator and planning to change it over the next week or so.
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post #7 of 14 (permalink) Old 01-06-2019, 01:14 PM
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Quote:
Originally Posted by Spockster View Post
If it's not charging, it won't trigger the headlight relay.
One leg of the stator feeds AC volts to the headlight relay so that it triggers when the engine starts. The one bad coil apparently is on the leg feeding the headlight relay. So no headlight.

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post #8 of 14 (permalink) Old 01-06-2019, 02:36 PM Thread Starter
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so i can test this by switching the 3 yellow wires with eachother?
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post #9 of 14 (permalink) Old 01-06-2019, 02:45 PM Thread Starter
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Quote:
Originally Posted by Spockster View Post
One leg of the stator feeds AC volts to the headlight relay so that it triggers when the engine starts. The one bad coil apparently is on the leg feeding the headlight relay. So no headlight.
I tested switching the wires out and it worked, my headlight is back up!

Thank you all, ill be replacing my stator shortly, already got it in last week!
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post #10 of 14 (permalink) Old 01-06-2019, 07:23 PM
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When I got my 94 the headlight didn’t work so I did the

:https://www.vn750.com/forum/19-electr...relay-mod.html

It bypassed the relay and the light worked. Might try this.
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