know them well, funny how the first compliant engines had these "trim valves" w/ the adjustment screw, looking to range from 0-5 vdv @ idle when in the diagnostic plug(4 flat) w/ your meter. the newer ones dont have adjustment provisions.
now, we cant remove plug and adjust, (per, epa), we have to order new, adjust, then hammer a cap in, loving it, we arent even supposed to remove cover off carb., sorry mixer, and check diaphragms, epa violation, same carb, same diaphragm, taking our adjustments away from us.
this is all fine, wait untill our units are out of warranty, we are going to have very *%*&cheesed&&%^ off customers when they have to pay for all this ***stuff**& !!!! somewhere, someone forgot moving a load from point A to point B is the reason for forklifts !!!!!!!!!!!!!!!!!!!!!!! nj.d.