:dude: new to this forum and i don't want to sound stupid but i am working on a weedeater s532 ryobi for a friend of mine the problem is there is no lever on the choke. this is a fairly new unit and the shaft is in place do you think someone removed lever or just knocked it off.when i started working on it that was the first thing i noticed also the air filter is missing. i took the carb apart and cleaned there was a lot of dirt inside that had damaged the diaphram put it all back together and still will not start. the manual choke has be working on this unit doesn't it?