Question about 1980 Yamaha XS 400 Special

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Why does my headlight flicker off and on when riding my 1980 yamaha special 400

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You have a loose plug in connection or a broken wire (wire broken inside plastic tubing) . These would cause the light to flicker when driving over bumps in the road. An old headlight bulb might also flicker if the filament is starting to break loose. One last possibility would be a dirty switch on the handlebar ( arcing through a burnt contact). You could try taking the switch apart and clean it. Unplug and replug all connections checking for loose or corroded ends/plugs where the wires are soldered in. Pull and bend/twist sections of the harness hoping to find a bad spot you can bypass and remedy the problem.

Posted on Oct 13, 2010

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Posted on Jan 02, 2017

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