I have a sha 16 on my nc 50 that has a 60cc kit 2stg reeds a stock header and jamarcol slip on pipe. at an idle it loads up once it clears up the mids run like a raped ape till 30mph and the slow go to 35mph where it tops out at. my question how can I lean out the idle? I have tried several different main jets (that`s were idle circuit gets it fuel from) if I go down to were I get a good idle then I`m to lean in the mid and top end is there any to lean out the idle circuit??? with out effecting the rest of the power curve? or should I switch to a carb that has more jets and adjust ability??? which carb has the best performance gains and more jets ie start up,idle,main and a adjustable needle.
sorry for all the questions but I`m really tired of switching main jets to only go slower at top speed but idle great or vise-versa.
Thanks in advance Mad Mike from Michigan