Strongly considering buying a very nice ST1100 …

If I remember correctly the ABS light should not go off until the system completes its self-check. This requires a minimum speed of six MPH to complete.
When I had a K1600, what you describe happened after, for example, washing, but if the bike was in use and just parked in the garage, I could start it the next day and the ABS lights went out the moment the engine was running and all the instruments were up.

Is there any way to "trick" the ABS warning lights... so that they light up with the ignition on and go out when the engine is running?

I don't suspect that the owner has done anything about this, but I don't know.
 
One thing you cannot fully check until the rear wheel comes out:
condition/wear on the drive spline + bearing boss on the rear wheel... (and in some really bad cases also the ring gear of the f/drive is shot...)
Some slag during a test ride might only source on worn hub-dampers... or the above...
 
One thing you cannot fully check until the rear wheel comes out:
condition/wear on the drive spline + bearing boss on the rear wheel... (and in some really bad cases also the ring gear of the f/drive is shot...)
Some slag during a test ride might only source on worn hub-dampers... or the above...
The best thing would of course be to dismantle the rear wheel to see the condition but I feel it would be a bit too invasive towards the seller.

Of course I will ask relevant questions and look at the available documents, receipts, manuals etc. I have carried out various tests with the bike in the yard, checked all the lights, horn etc. I started and stopped with a cold and warm engine.

I am planning a test drive with an hour of driving time mixed driving on the motorway, country road and city so we will see what impression I am left with.

This bike has no cosmetic damage after a rollover, the others I have looked at have had silent rollovers on both sides with damage to the mirrors and fairing.
 
The best thing would of course be to dismantle the rear wheel to see the condition but I feel it would be a bit too invasive towards the seller.

I suspect you didn't mean "dismantle" literally, but to examine the splines you just have to remove the rear wheel like you would for a tire change.
 
I suspect you didn't mean "dismantle" literally, but to examine the splines you just have to remove the rear wheel like you would for a tire change.
Yes, that's right, my English is not very good, but with a little school English and Google Translate I hope you understand what I mean :)
 
The best thing would of course be to dismantle the rear wheel to see the condition but I feel it would be a bit too invasive towards the seller.

Of course I will ask relevant questions and look at the available documents, receipts, manuals etc. I have carried out various tests with the bike in the yard, checked all the lights, horn etc. I started and stopped with a cold and warm engine.

I am planning a test drive with an hour of driving time mixed driving on the motorway, country road and city so we will see what impression I am left with.

This bike has no cosmetic damage after a rollover, the others I have looked at have had silent rollovers on both sides with damage to the mirrors and fairing.
Not sure how the seller would feel having someone take off the rear wheel for inspection, and that it would be put back correctly. If I were the seller, I would gladly do it for the "serious" buyer with cash in hand, but not sure for the tire kicker. Tough decision on the part of the seller, and agree it would be invasive.
 
When I had a K1600, what you describe happened after, for example, washing, but if the bike was in use and just parked in the garage, I could start it the next day and the ABS lights went out the moment the engine was running and all the instruments were up.

Is there any way to "trick" the ABS warning lights... so that they light up with the ignition on and go out when the engine is running?

I don't suspect that the owner has done anything about this, but I don't know.
On the ST1100 when the ABS light goes off this indicates that the ABS module has completed the self-checks and all of the tests have passed successfully. To complete this test it must detect wheel movement from the ABS sensors. This is why the light does not go off until the motorcycle moves. If the light is going off without moving the motorcycle this is not normal.
 
Nice bike with proper windshield and without top box which I prefer :)

IMG_3388.jpeg
And my favorite color for the ST1100!
I would not sweat the timing belt as age seems to not be an issue with any of the ones I have done or had done.
No cracks, no problems.
If the ABS lights went as you went rolling along that means the ABS did it's diagnostics and found everything to be 'suitable'.
 
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