So i recently put dual 35mm mikuni carbs on my banshee. and im have problems with it cutting out and it will not idle at all. the guy i bought the carbs from said i would only need to change out the main jet. He suggested a 200 main jet. But now i cant get it to idle and it doesnt run worth a sh****************. any suggestions would greatly help. i would rather do the work myself then take it to a shop. I have full pro circuit exhaust and i took the snorkel off my airbox

 

Stock Mikuni have around a 260 main. I had a 290 in my Banshee when it had stock cly's with Toomey pipes and K/N filter. I have a port job and 4mil long rod motor in it now and run 310 mains. The 200 you have in there seem to small to me. I have a set of 34mm Mikuni's I'm going to install and will start with 320 mains.

 

If your only mods are pipes and snorkel off your airbox you dont make enough power to use 35mm carbs . Put your stock ones back on or get a port job and k&n filters.

 

How far are the carbs out of sinc ?