Throttle Down Question

[madecant]

Im having a problem with my Briggs 16.5 Hp engine; I can't seem to throttle it down once I increase the throttle. (If I start it at low throttle it's fine but once I throttle it up and then try to throttle it back it stays at high throttle.) Any help would be appreciated

 

[ILENGINE]

Start by making sure that all the linkages and shafts move freely and are not binding. I have seen throttle shafts in carbs get sticky and not return like they should.