Searching the net again had revealed that Napa, the American equivalent of Halfords only much more efficient produced a 3011 filter that some 690 riders in the USA had used instead of the Ktm fuel filter. We used one of the Napa fuel filters along with the old pump and bingo, the bike runs great.
Mine gets insanely good fuel mileage with all kinds of mods, like 50+ mpg in Enduro setup. If you put SM kit on it and ride it 100mph all day, it drops to the lower 40s, like 42-45mpg.
Fuel mileage was around 60MPG average, going around 70mph traveling speeds on the roads. Seat is a weak spot, even with the Corbin, my ass hurt in all sorts of ways. But, be that as it may, I did 2 500+ mile days the last one )south rim to San Diego) in 110 plus through the desert.

4. Butt dyno says low end is very sensitive to motor breathing. Say below 4500. After Q4 install and remap maybe a little better low end. Took the quiet insert out and saw nice increase. So I took the airbox cover off and mounted the paper filter with a couple of pieces of angle bracket and lots of grease.

1: Adjust the engine idle speed UP, if possible. 2: Change the throttle cam to one with a 'softer' profile, if possible. 3: Change the fuel mapping switch, if an option. 4: Add dynojet kit (powercommander) with custom map. Weighing in at 350 pounds with the 3.6-gallon fuel tank, the 690 Enduro R weighs more and has a larger fuel capacity than a dual sport bike, yet it’s not close to as big and heavy as an oH6i.
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    • ktm 690 enduro r fuel economy