Question about 1989 Suzuki GSX-R 750 RK

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Headlight won't work properly on GSXR750

All other lights are working fine. Headlight would come on and stay on for a while then go off while I'm riding. Only seem to have brights/high beam.

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First check for bad connections in the bulb plug, wiring plugs and wiring for damage or corrosion. Something is heating up and breaking a connection. Unplug plugs and fill with dielectric grease. If all else is good replace the bulb.

Posted on Apr 13, 2014


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Posted on Jan 02, 2017

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SOURCE: Headlights don't work on start up

Energy must pass through your switch (hi/low or momentary), then to your headlight, and finally to ground. An interruption anywhere will cause the light to go out. Since both your hi and low beams are not working, I suspect a bad ground connection somewhere. Probably in your switch, but if it is easier to check the headlight socket I would check that too. Use a multi-meter, see if you have power to the switch. If you do, ground the negative lead coming to the switch and see if your headlight comes on. If it does, you know you have a bad ground.

Posted on May 21, 2009

  • 103 Answers

SOURCE: Headlight won't work

follow those lines back to the relay center and make sure first there is continuity from the relay plug to the light sockets....if that's fine, then check for power at the relay, ground the other side of the relay to turn it on and check to see if the power continues out to the line feeding the lamp....if it doesn't then the relay is bad....if it does then you have a problem between the lamp control switch inside the car to the relay.

Posted on Jun 30, 2009

  • 1129 Answers

SOURCE: Only high beams will work-

Either the low beam filament in the bulb itself is blown or the headlight relay is faulty. To check bulb remove it and run a jumper wire to the ground and then touch a hot wire to the terminals one at a time to verify each filament is in tact. If the bulb is ok locate the headlight relay check the connections and replace relay if this doesnot rectify the problem the headlight switch itself is faulty.

Posted on Jul 20, 2009

  • 140 Answers

SOURCE: suzuki 1200s bandit,headlight & main beam not

G'day mate , now did you just look at the fuses or did you pull them out , often you'll find that on bikes the solder in the fuse will break , not the filament , go after that to the harness that gets the power out it may be loose, dirty , shorted , then try the earth at the light wire try these before you go for the micro switchs in the handle bars they are a real piece of work to get appart and back together and truthfully not much in there to go wrong

Posted on Apr 20, 2010

  • 330 Answers

SOURCE: 2007 gsxr headlight went out...all other lights work,

Low beam switch may be bad. use a meter to check for power to lowbeam side of lamp. cleaning with electrical contact spray may help.

Posted on May 07, 2010

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