If this is all occuring at low idle then, it is quite common for #2 cylinder not to fire as hard at idle. On the letter series the incoming fuel air mixture is usually all used up by #1 cylinder at idle, it leaves very little for #2 to use. This was taken care of on the number series with the advent of the Duplex carb. The ramping RPM may be from the idle needle not being open far enough or a blocked passage in the carb. As the engine starts to die the governer opens the butterfly valve to send more fuel/air to the engine, when the rpms pick up the butterfly closes and the rpms slow down starting the cycle all over again. I'm no expert but this maybe a place to start looking.
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Today's Featured Article - When Push Comes to Shove - by Dave Patterson. When I was a “kid” (still am to a deree) about two I guess, my parents couldn’t find me one day. They were horrified (we lived by the railroad), my mother thought the worst: "He’s been run over by a train, he’s gone forever!" Where did they find me? Perched up on the seat of the tractor. I’d probably plowed about 3000 acres (in my head anyway) by the time they found me. This is where my love for tractors started and has only gotten worse in my tender 50 yrs on this “green planet”. I’m par
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