05 r6 low beams dont work high beams do - 2005 Yamaha YZF-R6

check your fuses and if that dont work it could need new bulb if that does not work you have a wire issues

Sure that your just not hitting the switch the wrong way? sounds like everything is working correctly unless the left side has a bad High beam bulb and both are supposed to be lit for low and hi beam.

The headlamps are controlled by the Body Control Module (BCM) The first thing I would check for is the Headlamp Hi Relay. It is located in the underhood fuse/relay box. If pulling the relay out turns your high beams off, try taking out the low beam relay and putting it in the high beam position. If the headlamps stay off, try plugging the high beam relay into the low beam position. If the low beams now come on, the relay is shorted.

If none of this works, I would recommend scanning your BCM to see if there are any fault codes.

Check for bad ground for low beam and bulb.

Also, check that the high beam works independently of the low beam for that mode.

this is normal for an r6. the lights are set up as endurance lights from the factory

replace the headlight bulbs. Usually when the bulbs blow out the low beam blows out first, but the high beams still work. If you want and need both low and high beams to work then replace the headlight bulbs with brand new ones and I garauntee that both low and high beams will work

There are no relays for the headlights. Your problem could be from the headlight switch. You would have to check and see if you have power coming out of the switch on the low beam side. Check with a test light.