Small Engines (Lawn Mowers, etc.): MTD Push mower carb adjustment, adjustment screws, adjustment screw

Question
Ben,

I've got an MTD push mower.  It's not running at enough RPMs, coughing a bit.  Model# 11A54MB029  959-633.

How do I adjust the running speed.  I took the engine cover off, but didn't see anything that jumped out at me as an adjustment.  There is an arm on the left side that I could push and the revs came up.  I just didn't see a way to adjust it.  Also, I was able to pull the throttle cable that's attached to the safety handle just a bit, but that didn't increase the revs at all.  Thanks for giving your time and knowledge to this board!

Answer
Sam
1 Locate the adjustment screws on your lawnmower engine. You should see two of them: one on the side of the carburetor barrel and the other underneath the float valve bowl connected to the barrel. The adjustment valve on the side is for air adjustments, and the one underneath is your high-speed adjustment.
Step
2
Turn both adjustment screws clockwise with a screwdriver until they are seated at the bottom. Do not over-tighten the screws, or you will damage the valves. Turn back the adjustment screws 1-1/2 turns.
Step
3
Start your lawnmower engine and allow to warm up for about 5 minutes. Turn the adjustment screw on bottom of the float valve bowl counterclockwise one complete turn to speed up the engine. Adjust until it is set at the speed you desire, without giving too much fuel and choking the engine.