My 2001 Adventure has developed an oil leak on the breast tube {er that is the front frame downtube). The oil is leaking from the 2 drain holes in the frame gusset of the head tube (just behind the lower radiator frame mounts. There is no visible or obvious cracks, but I wonder if there is a crack somewhere behind the gusset. Does anyone have experience with this sort of problem. Basically the bike drools oil down the frame tubes and makes a mess of everything in the way.
Help

This I have not seen before or even heard about.I have had a look at my KTM and can only see that you have a small hole around the weld on the downtube where it meets the radiator bracket.If this is the case I would drain the frametube of its oil then have a welder float some more weld in the area.
Good luck keep us posted. Cheers Andy miller.

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I still haven't solved this problem. The leak is definetely behind the gusset and there is no way I can reach it with anything. I wonder if I just pumped the drainholes full of silicon until I can pump no more. This is really starting to bug me since it makes an awful oil mess of the bike