Its like anything mate, the more upgrades you do the better your performance is going to be. If your happy with a stock then dont worry but if you want better performance then theres many things you could spend your money on.
carby, short for carburettor. australian slang i guess. the needles in the seat allrite. im guessin before any dust or dirt could get into the cylinder, it would block up the needle.
I was out riding the other day and the i noticed the left carby cap off. duno how long it was off for, dusty conditions. shee started chokin and eventually wouldnt start. any ideas what the problem could be. there wasnt any dirt in the carby.