my fizzer (91 exup) is getting really bogged down on the take off unless i really give it some revs and i feel like a bit of a fool doing that every time i take off at the lights. i have very limited knowlege of 4 stroke bikes so any help would be great before i just have to give in and send it to the mechanic to fix it. cha ching !!!! i hear people talking about sticky exup valves could this possibly be it ? if so how do i go about fixing it ? [/img]