I have a .12 picco engine and the carb is a three needle touchy piece of crap i understand needle settings and how to tune them but my idle needle dosent seem to work right question being can i switch to a more basic 2 needle carb for esier tuning will it lower power or hurt the engine in ay way and should i go with picco carbs or can i shop around thanks for your help

sure you could switch to a 2 needle, but one you learn how to tune em you would just want to switch back.
i cant tune work a crap either but give it some patience.