Headlight woes - Kawasaki Vulcan 750 Forum : Kawasaki VN750 Forums
Electrical
Where does this wire go?
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post #1 of 14 (permalink) Old 05-04-2016, 11:42 AM Thread Starter
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Headlight woes

Blue wire bypass done. Voltage at headlight plug gives me .11 volts regardless of high beam selector position, and the dash light doesn't come on for high beam.
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post #2 of 14 (permalink) Old 05-04-2016, 12:16 PM
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At some point, has the headlight worked since doing the bypass?

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post #3 of 14 (permalink) Old 05-04-2016, 12:26 PM Thread Starter
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Worked fine til teardown.
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post #4 of 14 (permalink) Old 05-04-2016, 12:28 PM Thread Starter
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Can I pull the blue wire on a toggle switch wired to the battery?
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post #5 of 14 (permalink) Old 05-04-2016, 12:54 PM
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yes, but also add an inline fuse to be safe.

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post #6 of 14 (permalink) Old 05-04-2016, 01:11 PM
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Thinking about this, bypassing the JB by jumping the blue wire to the battery won't do you any good if you're currently getting 12v out of the JB on pin 17 (the new location of the blue wire after the blue wire mod), which you should be if the tail fuse is good like you claimed. You'd be bypassing good circuitry, and the problem downstream would still prevent the headlight from working.

short story: check for voltage there before rewiring.

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post #7 of 14 (permalink) Old 05-04-2016, 01:19 PM Thread Starter
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Quote:
Originally Posted by Thorn View Post
Thinking about this, bypassing the JB by jumping the blue wire to the battery won't do you any good if you're currently getting 12v out of the JB on pin 17 (the new location of the blue wire after the blue wire mod), which you should be if the tail fuse is good like you claimed. You'd be bypassing good circuitry, and the problem downstream would still prevent the headlight from working.

short story: check for voltage there before rewiring.
Will do. Should be a constant 12v out of the blue wire with the key on, right?
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post #8 of 14 (permalink) Old 05-04-2016, 01:23 PM
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Quote:
Originally Posted by crowley1027 View Post
Will do. Should be a constant 12v out of the blue wire with the key on, right?
If your blue wire is in the top back position of the JB, yes.

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post #9 of 14 (permalink) Old 05-04-2016, 02:09 PM Thread Starter
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No voltage to blue wire from jb. Pulled blue wire from plug and touched to positive terminal, light lit up. Working on a switch right now. What can happen if I don't put a fuse inline?
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post #10 of 14 (permalink) Old 05-04-2016, 02:47 PM
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double-check your main and tail fuses. should fix your problem without rewiring.
if you don't put a fuse inline, a short can kill your battery or start a fire. You said you blew a fuse earlier ... whatever blew that fuse would have done more damage without the fuse.

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