The springs tuck them out so they engage at a low rpm. As the mag speeds up the counter weights bring the pawls in against spring pressure. If you turn the mag over by hand in the direction it is used it will turn a 1/4 turn and the pawls should engage and then the impulse spring will start to wind up, you will feel this tension build the more you turn it. Then all of a sudden the pawls let go and the impulse spring unwinds and spins the armature in the mag at a faster RPM to create a good hot spark while hand cranking the engine. The impulse spring is located behind the mag drive coupling. It's actually called "Impulse Coupling".
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Today's Featured Article - Tractor Traction - by Chris Pratt. Our first bout with traction problems came when cultivatin with our Massey-Harris Pony. Up till then, this tractor had been running a corn grinder and pulling a trailer. It had new unfilled rear tires and no wheel weights. The garden was already sprouting when we hooked up the mid-mount shovel cultivators to the Pony. The seed bed was soft enough that the rear end would spin and slowly work its way to the downhill side of the gardens slight incline. From this, we learned our lesson sinc
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