Question about 1977 Honda Cb 400 F

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Headlight went out and it's not the bulb

Checked the wires, everything seems fine, all other lights on the bike function great, somehow not getting power to the front main headlight, help!!! I can't ride without it!

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Just check the wiring in the switch housing on your control sets. The contacts inside sometimes oxidize in the old hondas, stopping a good connection. A quick rub with a wire brush will sort it out if that's the case. Lovely looking bike BTW.

Posted on Jan 16, 2009

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I have a 2006 Shadow Aero everything works fine exept the headlight bulb is fine and fuses are good,comes on for a second or two checked whatever I could now where to go?


Hi, Mike if your headlight is not working, only one beam works, keeps burning out, blinking, or is dim the first thing you need to check is the headlight bulb for damaged filaments then check your light circuit fuse, then check your head light bulb socket ground wire for a clean tight connection, that being said the usual suspects are:
1. Faulty ground or power supply wire to headlight bulb socket.
2. Worn down solder contacts or loose fit of the bulb base in the socket due to vibration.
3. Worn, chaffed, or broken wires in the light circuit.
4. Corroded, broken, or loose pins/sockets in wire connectors.
5. Faulty hi/lo beam switch.
6. Faulty ignition switch.
7. Fuse is good but no continuity on both sides.
8. Faulty wiring between battery positive and headlight bulb socket.
9. Weak charging alternator/generator.
10. Faulty voltage regulator/rectifier ground or overcharging.
For more information about your issue and valuable "FREE" downloads that you will need please click on the links below. Good luck and have a nice day.
Headlight problem
http://www.vt750dc.com/HONDA_VT750DC.pdf
http://www.partsfish.com/page/oem-parts-for-honda
http://www.vt750dc.com/VT750DC_OwnersManual.pdf

Sep 14, 2016 | Motorcycles

1 Answer

I have a 2004 Honda shadow Aero 750. Bike starts fine, but no headlight, checked fuse.. is good. But the high beam indicator doesnt even show the blue light on the tank when high beams switched on. Any...


It could be the headlight bulb, the headlight switch or a worn/broken wire to the headlight. I would take out the headlight bulb and see if you can see a break in the filament. You could also use a jumper wire and test it with a 12 volt battery. If the headlight checks out ok, I would take a 12 volt tester and see if you have voltage at the headlight plug.

Good Luck

Sep 19, 2014 | Motorcycles

1 Answer

03 bmw r1150 rt blowing low beam fuse


Hi, Joseph put in another fuse and start wiggling wires in the light circuit if your headlight is not working the first thing to check is the headlight bulb for damaged filaments then check your light circuit fuse, that being said the usual suspects are:
1. Faulty ground or power supply to headlight bulb socket.
2. Faulty hi/lo beam switch.
3. Faulty ignition switch.
4. Fuse is good but no continuity on both sides.
5. Faulty wiring between battery positive and headlight bulb socket.
For more information about your issue, please visit the websites below. Good luck and have nice a day http://forums.bmwmoa.org/showthread.php?49593-Blown-fuse-2004-R1150RT
R1150RT headlight issues BMW Luxury Touring Community
http://www.carlsalter.com/download.asp?p=313
BMW Motorcycle Parts Fiche OEM BMW Motorcycle Parts online 1970 present BMW
http://www.bmw-motorrad.com/us/en/index.html?content=http://www.bmw-motorrad.com/us/en/services/manuals/manuals_main.html¬rack=1

Mar 05, 2012 | 2003 BMW R 1150 RT (ABS)

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Headlight out, driving lights out, fog lights out... but directional front and rear lights work fine as does the brake light work fine. there just does'nt seem to be any electric going to those lights up...


ok could be a couple things here. Im having a memory issue at the moment so first Im gonna tell ya to check the light on your front fender if it has one?
If so and that light is out as well then run your fingers up the inside of the front fender on the right side of the tire. Have the wires from the fender tip light been rubbing on the tire and now are bare and shorted out?
Second at least if the fender tip light wires are ok or you dont have a fender tip light would be to simply click your hi/low beam light switch. Do you have a high beam and just not a low beam? If so its the bulb in the headlight because its blown out on the low beam side. Replace the headlight and then youll have your passing lamps and your fog lamps back as well since those circuits all get there power from the low beam circuit of the headlight. Good luck and let me know what you find.

May 30, 2010 | 2006 Harley Davidson FLHR Road king

1 Answer

998 lowbeam problem


Chips and relays go bad, but before checking that I would: Check that you are getting current in the socket that the bulb connects to. Also make sure that the socket is solid and that the connectors are intact. Make sure all wires are connected. Sometimes the ground wire or others disconnect, but look connected. I'm sure you pulled out all fuses to check with a flashlight [if you cannot see if on was blown with the naked eye]. Also, odd and obvious as this sounds, sometimes the replacement bulb may be defective too. So I'd have a couple new ones to see if that is the problem. Follow the wiring to make sure that the wiring or connectors are solid. Actually disconnect and connect all connectors as sometimes loose connections cannot be seen with the naked eye. And I would check everything forward and reverse, as it is sometimes to miss something if you only go in one direction. In other words, start at the headlight, then work back to the chips and relays, then start at the chips and relays and work toward the light. One thing I do is work in a dark place and use a bright flashlight to focus on areas I am checking. Seems to work better than in a lighted garage, etc.

Nov 20, 2008 | 2004 Ducati 998 S Final Edition

1 Answer

Headlight


violet i have checked the ground at the headlight and it is good. I also get no power at the yellow wire coming from the stator i do get power from the white wire coming from the stator. If i disconnect the wires from the headlight i then get no power from the white wire off the stator. if i disconect the yellow wire from the stator i also get no power from the white off the stator all connections seem to be fine and the bike runs great. the bulb is good please help! thanks all.,It sounds like you may have lost the stator ground or one of the windings is open. Measure the resistance from the yellow wire to ground and from the white wire to ground. Each winding should be less than 1 ohm to ground. You should also be able to measure resistance across the white and yellow leads. Here again, less than 1 ohm. __________________,,,

Nov 10, 2008 | 2007 Gas Gas MC 250

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