Sorry to come in late on this one.
Spent a lot of time investigating fork seals on WPower.
They are common on KTM's and can be problematic, including some people I know.
I was planning a huge trip 6500klm over nearly a month in all conditions and given my bike (which was second hand) appeared to have 'not' been in the dirt and mud I thought now was the time to act.
The consensus in my investigations appears to be that if you ride dirt and mud, then if the fork tube is not 'cleaned' before starting the next day that the dry mud and crap is 'forced' past the wiping seal and into the oil seal.
So I bought a pair of watersuit type neoprene boots, the velcro type that mounts onto the upper fork leg with a cable tie and sits tight around the chrome tube.
So the tube stays pretty much clean all the time and unless you stop straight after a big bog it is certainly clean first up the next day.
Cost around $30 to $40 dollars, 15 mins to fit. Kreiga I think.
One other style that I did see online (Ballards in Australia) was like the old dirt bikes which had the concertina style rubber boot but they were out of stock plus you had to pretty much drop the forks to get them into position.
When I got home I undid the cable tie, washed them, let them air dry and refitted.
Suspect that they were dollars well spent and if nothing else the tubes will stay nicely polished and have reduced stiction... or whatever that word is.
One other good old trick I used on my old XR400 was to pop up the dust seal and wet a thin strip of air filter foam with fork oil.
Pop that under the seal and re seat.
Given the XR have a noticeable scratch on the fork leg and had gobbled a few seals in the past, that actually stopped the inner oil seal from deteriorating and never had that problem again. Just occasionally popped the dust seal, cleaned the foam and re oiled and voila.
So will get around to doing that on the Tiger, maybe... then doubly protected.
