Have you looked at your intake manifold gaskets? I have had to mill down the manifold on every tractor I have had. The gaskets on a WD don't seem to hold up all that well, and the exhaust ports tend to gas cut around the leaky gaskets. I have seen a lot of them that were not properly cleaned off of the intake ports, with a new gasket installed it can create a vacuum leak. Test for it with a squirt can of oil around the intake ports and see if it settles down. (I usually use a squirt can with gas in it) I also have found, just this year, a hard shell bug stuck in the internal passages of the sediment bowl, above the shut off screw, that was severely impeding the flow of gas. Take off the fuel line at the carb and verify a steady stream of gas. HTH
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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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