Engine off, dash lever set to fast, the carb throttle plate should be in the wide open position.
Engine running at idle, while watching the carb, suddenly push the dash lever to full speed, you should see the throttle instantly go wide open, then modulate back to full governed speed, 1400 RPM.
Also check the distributor. Check the centrifugal advance, check for side play in the shaft. If either has a problem the timing will not stay set or function properly.
And check the air cleaner. There is a wire mesh element inside the canister. It is commonly clogged with dirt enough to restrict the air flow.
With everything in good operating condition, then the carb and jetting can be addressed. A properly jetted and adjusted carb should be able to take sudden throttle from slow idle without hesitating or balking. If it hesitates, it's too lean. Continued black smoke, sooty exhaust, black plugs, it's too rich.
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Today's Featured Article - Hydraulics - Cylinder Anatomy - by Curtis von Fange. Let’s make one more addition to our series on hydraulics. I’ve noticed a few questions in the comment section that could pertain to hydraulic cylinders so I thought we could take a short look at this real workhorse of the circuit. Cylinders are the reason for the hydraulic circuit. They take the fluid power delivered from the pump and magically change it into mechanical power. There are many types of cylinders that one might run across on a farm scenario. Each one could take a chapter in
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