this is my setup stage 6 sport pro varitaor polini kelvlar belt stage 6 racing clutch stage 6 street race 70cc stage sport pro exhaust standarb carb standard airbox with a car washing sponge init many thanks also anyadvice on things that i need to do to my bike will be helpful its a aprilla sr 50 lc 2004
Here's what you're looking for mate: http://www.scootershack.co.uk/newbie-scooter-tuning/scooter-carburetor-jetting-guide-t2747.html
thanks a bunch so if my standard jet is 60 ill start at around 70 for the main jet after fitting a new exhaust and bore kit? another question will the piolet jet need upjeting too?