Small Engines (Lawn Mowers, etc.): b&s 16 hp vanguard on maxll atv, screw out, speed adjustment

Question
idles to high, idle adjust screw out all way and wont slow down.  idle stop about 1/8 inch from end of idle screw.  Have to choke to slow down engine to shift. Is there another adjustment to get lower idle.

thanks

Answer
Max
Have you checked the governor controls. This could be the cause of the idling high.You may have to adjust the high speed adjustment also. Try this start the engine and when engine is set for high speed adjust the high speed screw till it smoothes out next take the throttle and push it down to slow, if it is still runing high turn that screw till  it goes to idle.The throttle cable is what operates the choke on some models and the primer on some others, but it works the speed of the engine. To adjust the throttle that works the choke you need to loosen the throttle and open the throttle all the way, then push it until the choke is closed all the way.  To adjust a "speed only" open the throttle all the way and make sure that the engine speed will be all the way open and then tighten the cable back up on the engine.  Make sure if you have a kill switch on the throttle cable, that it works when you lower the speed all the way.  If not, adjust again. Carburetors: Carburetors are the cause of 99% of all small engine problems. Carburetors are the easiest thing to repair on small engines.