Hi there,

I have a similar trouble now... almost +20% fuel consumption if i compare to when i bough the bike.
So i fitted kev O2 and fuel mods, as well as dna air filter... but that was way before the consumption went higher. Tryed with the fuel mod set to 0, no change.
Filter is clean. Spark plug looks ok, i'd say the bike runs fine except for the consumption.
I also added an aftermarket exhaust (i can't see that increasing fuel consumption that way, plus it has no cats now...)

What may play a role is that i fitted a slightly bigger and less street oriented rear tire. I can see that decrease my mpg as i look at the odo to calculate it+ dirt tire will waste more energy on the slab. But not THAT much

Any idea what to look for, before i give a shot at putting everything back to stock (remove kev mod, stock filter and snorkle, stock exhaust) ?