XTZ660 headlight adjustment

[davidandmo]

My XTZ failed it's MOT (UK inspection) last week because the headlights point too high, despite having passed 3 previous annual tests with the same adjustment.

I had a look in the service manual but could only find left to right adjustment. To save me experimenting, does anyone know how to adjust the lights vertically?

Also while I am asking those with high mileage bikes (Fred?), my bike has done about 60,000km and has never had any engine work other than the usual oil/filter changes and valve clearances checked. Can anyone recommend any preventative maintenance that I should be doing or is it time to check the internals? The bike still runs great and sounds fine although there appears to be a harsher vibration at around 5k revs recently. It doesn't feel relaxed cruising above 110km, but then I suppose it has always felt a bit 'vibey' and I've never cruised above 120km/h - maybe I'm too mechanically sympathetic!

Any advice would be appreciated.

Cheers

Dave

[Ralph]

Looking into the fairing at the back of the headlight the adjuster screw on the bottom left hand corner of the light is the vertical adjustment.

The adjuster screw on the top right is for horizontal movement.

[davidandmo]

Thanks for the pointer. Unfortunately it appears the different models of XTZ have different adjusters. Mine is an 'H' '96 and doesn't have the adjusters you mention in either the bottom left or top right. I looked at the workshop manual again and it shows different adjusters in the main manual (for the original bike) and the supplementary ones ('94 and '96 models) - although my manual was copied from a microfiche borrowed from a bikeshop so the photos are next to useless.

Anyway, after a bit of experimentation it appears the screw on the top left does the job. MOT re-test tomorrow so we'll see..

[FredXTZ]

No worries about the engine I would say. You can easily check the possible lengthening of the camchain bij removing the spring, then removing the tensioner and checking how many marks there are still to go. It seems that the last few are not engaged by the spring. You can do that by hand in case of emergency or lazyness, but then it's time for a fresh chain. If you have no excessive oil consumption [say over 1 l. every 1000 km.] things seem ok.

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Fred, XTZ660, Holland.

[AnteK]

Fred, I would say that oil consumption 1l/1000 km is a warning sign, that is definately too much and engine condition is very close to rebore. I did rebore 11.000 kms ago and engine took no oil at all. Reboring to first oversize is a cheep work, that costs around 400 EUR in my country, so I recommend everyone to do it when engine start eating oil up to amount of 1 lit.
Regards,
AnteK, XTZ 660

[davidandmo]

Thanks for the reassurance - my bike burns very little oil (nothing like 1l/1000km)and there is no rattle from the camchain so I won't be doing any major engine work just yet.

And the bike passed the MOT!