Check the stanchion for any microscopic inperfections, the slightest pit or knick will eat through a seal and dealer will need to address. The fork leg move up and down a seal faster than a light bulb flickers. If the dealer doesn't move and you don't want to replace them yourself, you'll get a much better deal at a suspension shop.I'm going to try the above method of cleaning the fork seal this morning, i assume the dust seal cap is just a push on fit and prizes off?...i will scrape round the fork leg with a piece of plastic milk bottle and see if it makes a difference!...i have been in contact with KTM and they confirm that fork seals are consumables and are not covered under warranty, however - repair is down to the discretion of the dealer.
Use a bit of wet n dry or scotchbrite to remove any sharp edges from scraper. Depending on size of fork leg, SE is an odd size you can buy rotary oil seals from any hydraulic shop...same same.Minute 7.45 is where you want look. Did mine 2 weeks ago, pre mot check identified it.
If it starts leaking again in 300miles ish, its the stanchion.This was still leaking after i had cleaned it and it showed up after a 20 mile ride, so i bit the bullet and took in into the dealer for a new seal, they were sympathetic but said that KTM would not cover it under warranty as it is a consumable item, they were very polite and professional and so rather than go through the hassle of a claim with KTM for what is not a lot of money , i let them do it....job done!