Carburetor adjustments on an Onan BF-MS engine?

Question

I have a Sears tractor with a Onan BF-MS 2666C engine. I am trying to adjust the fuel mixture, but to no avail. The engine surges at low speed and will stall when throttled down from high speed. Where should I start? I have not been able to locate a shop manual for this engine.

Answer 1

justin sounds like hes got the right answer,  you may want to make shure the fuel system is primed all the way with no air bubbles to get sucked through they'll keep an engine from idleing out properly too

Answer 2

if there is no mixture s***w then its probably a California carb no adjustment and expensive to replace especially on a onan