Hi guys, recently my bike is hesitating when i smoothly open throttle near 2000 rpm -maybe 1900-, a couple of times the bike stalled and i almost crashed. It happens in any gear but it critical in 1 or 2nd gear.

Not happening when i twist throttle hard but i cant do that in heavy traffic. Idle rpm is ok, and the bike has all its maintenance on rule. I guess that could be the TPS, but id like to hear your opinions as guys from the dealer did not find out what is going on.