tasha, i"d go back over the tune up first, recheck everything. check breaker point gap just to be sure. recheck the plug wires for correct firing order. next re-check the ignition timing. the m is timed "static" ie engine off. set the timing indicator pointer at zero, top dead center, then use a test lite to set the distributor so the points just open. that should get you in the ball park. next set the carb. idle circuit is about 1 and one half turns open. for the main jet, start at about 3 and 1-2 turns open. start tractor and let it warm up, say 5 or 10 minutes. open throttle wide open, then adjust main jet out till tractor starts running rough, about 3-4 to one full turn, then go back in to where it settles down and smooths out. kind of a sweet spot. see if that takes care of the problem. if not, then pull the distributor cap, and gently turn the rotor and see if it snaps back. if it does, the advance springs are working. if it doesnt, the distributor timing is not advancing and that can be your problem. last, to check for a vacuum leak, with the tractor running, spray some carb cleaner around the carb gaskets, and also where the manifold bolts to the engine. do this outside, and have a garden hose handy if the carb cleaner ignites. if the engine changes sound when you are spraying, that is where your vacuum leak is.
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Today's Featured Article - Trenching With a Plow - by Staff. Introduction: This interesting information came from one of the discussion forums here at YT. We thought we should place it up front so it could be read by anyone interested in putting old iron to work. [Editor] I tried something new today, and it worked so well I thought I should post it - in case it might help someone else. I'm running 100 yards of 4" drain pipe from the gutter downspouts of our house to a pond down the hill. This should hel
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