I have an OS 46 AX. When the engine is not used for several weeks, the carb gets stuck. When I move the throttle, I have to grab the arm the clevis is connected to to get it to move. Once it frees up it is fine. I have tried after run oil but that does not seem to help. I have gotten to where I have to work the throttle every few days to keep it from sticking. Any suggestions?

thanks,

You have a bit of buildup of old oil. Maybe a little dust and dirt thrown in. You could take the carb off the engine and put it in a jar of alcohol, the hardware store type, not the drug store stuff, and let it set for a few days, wiggiling things every day. THis will desolve most of the gunk. Then dump that alcohol and put in glow fuel and slosh it around and work the carb some to get it through out the carb. Wipe it down and re-install it on the engine. If it is realy brown and built up, dismanteling the carb and cleaning it is a good move. I would pickup a set of Orings and replace the old ones, and whether you pull or dismantel the carb, replace the carb to crank O ring.

Don

You could also take out the barrel assy and clean it all with fresh fuel and a lint-free cloth.

What fuel are you using?

Good advice. I will get it cleaned up. Thanks

18% store bought, the pink stuff. I do not recall the name brand.

The "Pink" Omega fuel has castor in it.

Castor forms a blackish varnish. This varnish has a tendancy to soften at high temperatures so it acts to protect the engine.

It may sludge up the carb barrel, especially if the carb got hot enough to form the varnish.

As suggested cleaning the carb should help greatly.

Just pull the slide and clean it with some acetone, works for me.