Fast Rev B&S
I have a small Craftsman riding mower that was given to me awhile back. I decided to take the carb apart to clean it out and give it an all around tune-up.
Now that the thing is back together, it seems like if you bring the throttle lever off idle the thing winds up faster than all get out. I have the tab on the throttle "cam" or whatever you want to call it that attaches to the governor spring bent in most of the way so it doesn't pull too far back on the throttle arm that is in contact with the governor.
About the only other thing I did to it was add some Rislone to the oil to help free things up.
I'm thinking it's something to do with the governor, but I'd like to see if I can get any other ideas before I pull the motor out and break the bottom pan gasket to inspect the governor.
I have adjusted the governor arm by pulling all the way back on the throttle arm and then turning the lever CW with a screw driver and holding both while tightening the lock-nut.
I just don't know why this thing wants to rev up so fast like a bat out of hell right once I bring the throttle off idle...
The engine on this tractor is a vertical shaft B&S Synchro Balanced 11HP.