i cant find any parts for my sons 110 mojave. its nice but i want him to go faster, and hes not big enough for the 250r. so i have read about drilling holes in the air lid, cant do that, i would never be able to find a replacement if it didnt work, and we do like to ride in the rain. i have drilled out the restrictors in the intake and exhaust manifolds, but i heard about " shimming" i think it was to the jets, what would i have to do? i cant even find a dial-a-jet for it, it was only made for 2 years so parts are rare if any. no twist grips, no muffler, nothing. so my question for you guys is what can i do to it that will increase hp with whats there?