When you shift, it winds up a spring and when you take the load off the speed it was in , that spring pulls collar out of that speed and attempts to match the teeth on the other end for other speed. Learn how and it will go slick as snot. I never did get it down pat but I really only worked on them and then road tested. Rode with a few drivers that were really good at shifting and some that were not. Also, there is a set of contact points on each end of the motor wind up mechanism so it breaks the circuit to motor once that mechanism reach's the end. When you pull switch for other speed, the motor reverses and runs until points are opened on the other end breaking the circuit .
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Today's Featured Article - Product Review: Lead Substitutes - by Mike Schordine. Lead was oriinally added to gasoline as an upper cylinder lubricant. It lubes the valves and seats. If you rebuild the motor, you could use hardened seats and valves, and unleaded fuel. But if your old tractor runs good, a simple lead substitute added to the gas is a perfectly reasonable solution. And, if you are like me, your tractor is under cover, but it sits outside. So with every temperature change, the humidity in the air collects in the fuel tank, in the form of water.
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