I have an old Mikuni BNO carb, not the round slide but a butterfly controlling air flow. There are two carb adjustments on the outside, high speed and low speed, and one in the entrance to the throat. My question is when the high and low speed screws are opened, do they lean or richen the mixture? And what is that screw adjustment in the throat do.
Right now it is mounted on my 1974 cheetah with a 440 kawasaki. I think the carb came off a Chapparal. Anyway the engine starts with some effort, once started idles good, and runs smoothly up to 1/8 throttle (around 20-23 mph) then when I give just a little more throttle it takes off like I just gave it 3/4 throttle. It is very touchy throttle in that zone. I would like to smooth out the performance.
Right now it is mounted on my 1974 cheetah with a 440 kawasaki. I think the carb came off a Chapparal. Anyway the engine starts with some effort, once started idles good, and runs smoothly up to 1/8 throttle (around 20-23 mph) then when I give just a little more throttle it takes off like I just gave it 3/4 throttle. It is very touchy throttle in that zone. I would like to smooth out the performance.