the only thing that will add power is a pipe. this will SERIOUSLY strain the shitty 50 kit that comes on them standard.. whoever told you 70 kits break your bike obviously had one and didnt set it up.. cba waffeling on about the same old shit anymore. you CANT have more power wihtout a 70 kit without SERIOUSLY reducing the life of the engine.
ok i was think of getting this 70 kit http://www.donotlink-pedstop.co.uk/p/PIAGGIO-NRG-AIR-GILERA-ICE-TYP-1775.aspx and this carb http://www.donotlink-pedstop.co.uk/p/POLINI-21mm-CARBURETTOR-KIT-FO-2665.aspx would this run ok i still dont know what exaust to go for and wat els would i have to add to make it run nicly
its been said dozens of times already on this and other forums... a scooter with a 70 kit and a std derezzed pipe will out gun a 50cc with a sports pipe all day long and they cost about the same as well :thumbsup: