Guys, What if, The Oil That goes up the Air compressor Line is actually Oil That lubricates the piston ? I mean, Like The engineers at Aprilia could actually tought of that, To lubricate the piston a small part of the crankcase oil gets into the air injector and then into the piston. I doubt I'm learning you anything over here, I guess you already know this possibility... But Ive been running Water-Trap less for a while (because Mine is too big and inconveniant, And The one my friend gave me doesnt seem to work) And It's running fine..
Actually, My friend Changed for a new champion sparkplug (like the stock ones) And it didnt foul yet (has 3000km on it), running no water-trap.
I know Water-traps have made their proofs for most of you, but While I had mine, I didnt see any differences pretty much.. So i was worried, maybe the oil was planned to get there ?