trying to fix a go cart for future Mrs. bogieboy's brother...
 

so... they have a gocart, and i can get it to pop off on ether, it has fresh gas, and once started i can get it to rev up, but it wont idle... engine is a 150cc gy6 like engine, forward/reverse trans, has decent spark....

i am thinking i need to pull thencarb and clean the pilot jet? has a Keihin CVK carb on it... i know NOTHING about them...i assume its like any other, and its just vaccumm slide instead of cable?

thanks...

all your assumptions seem spot on to me

That's exactly what I would do first. The main and slow jets are just like regular round-slide carbs.