Yes both carbs were running.rich. it ran smooth.but not as.smooth as.it should.be. I change to carb to summit brand still the same thing. Exhaust black and gas through exhaust. My wife hates when I start that thing up it get all in the house and the smell on my clothes. We tried idel mixture screws.didn't change. Thing. I almost thought that it qW the carb spaced drawing to much fuel. Tried 3 sets of plugs all are dark within days. The motor was broke in many months ago. It just sat untill I took the motor out and put it in my truck. Now its being driven under a full load. Oh by the way that's Joe gibbs break-in oil not Hubbard. My phone tries to think ahead of me.