I have a 99 big bear YFM350 with a Mikuni 34 carb.
I am rejetting it in preparation of a new Pro Circuit pipe.
I have an airbox mod already.
I am going up 2 steps on the main jet from 125 to 130 and one step up on the pilot jet to a 45 from 42.5.
Now the pilot screw is on the inside of the carb and you can only get to it by removing the float bowl unlike some carbs that you can get to it from the outside.
The manual stated that the stock setting is 2 turns.
The pilot screw protrudes into a hole in the throat of the carb which means it regulates air flow.
My question is this...
since it is so hard to adjust it I would like to know how much adjustment it needs to make a noticeable difference.
Stock is 2 turns out,and since I want to richen the mix, should I start at 1 3/4, 1 1/2, or 1 turn?