1)I have this problem that my fuel consumption is so bad that i get max 200km out of a full tank(15l), i then have like 3-2litre in the tank.
i run stage 3 airbox, full leovince exhaust, PC V with a map from the forum according to my mods.

2)Sometimes when i pull real hard my bike stumbles once and picks right back up, i wonder what this is, is this a fueling or a clutch problem?

3)My fuel light on the dashboard lights up when i still have 7-8litres of fuel in the tank, is this normal or not? i think it is not logical.

xt660x from 2005 with 14k kms on it