MOPED ARMY

ok: go to the wiki and learn a little more about cylinder kits

but the break down basically goes you are getting a larger displacement by switching to a bigger cylinder size. your stock newport is 49cc (cubic centimeters) if were to put this into car terms you have a .049L engine hehe since most cars run off of liters 5.0L(mustang)=5000ccs so in essence you are increasing the size of your engine. this boosts horse power output, and more power=more speed.

the bigger carb allows more fuel, and more air to come in, this equals to more action in the cylinder, and that means more speed again, the high compression heads increase the compression inside the cylinder itsself. and more compression again equals more power.

then you get into new exhaust systems. these can increase low mid and high end power depending on the pipe. some increase one, others are good at two. no pipes are equal across the board, or thats just stock..lol

jets are for tuning that added amount of fuel/air when you change to a new carb, or change filters, or run without one at all

well....you wont notice toooooo much of a diffrence. one, if you JUST do the carb and not the intake, you won't go much faster. don't worry about de-restricting an exhaust, just buy a new one. for real, thats the first upgrade i'd go with, because you CAN make your 12mm carb into a 14 or 15, and the same goes with the intake.

what about the athena 60 cc kit?

It is a one speed. I am fairly sure that the stock 1 hp has the restricted intake port (9mm). I have to take the intake off to be sure, but if that is the case I might as well buy a kit or at least a stock replacement that isn't restricted. Porting really scares me at this point...

you know you could also look around for a good used 2hp cylinder of even a magnum head and cylinder.

The good thing about kits is that often times people take off perfectly good cylinders and heads to put the kits on, and will let the stock stuff go for real cheap.