here are a couple of adjuster screws on the headlight unit. If you have a Fazer you have to take some of the fairing panels off to get to them easily though. There are 2 screws for adjusting the horizontal beam and 2 for the vertical. As you look at the headlight unit from the back you can see where the bulbs are held. At about 1 o'clock to the left bulb and 11 o'clock to the right are the 2 horizontal adjusters. At 8 o'clock to the left and 4 o'clock to the right are the vertical adjusters.To set up your lights, put your bike at a distance of 3.8 metres from, and facing, a wall, and sit on it with all your gear on (and maybe your missus too) but don't have it on the stand. Measure the height from the ground to the centre of the lights, and mark this on the wall. Mark a horizontal line to intersect the height of the lights on the wall (so you have made a cross on the wall). On dipped beam the light beam should be slightly lower than the horizontal line and to the right or the vertical line.
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"Just remove the two inner fairings (left and right). Then adjust by means of a 10 mm socket wrench "