Seems like you are missing the last step. After the previous steps are completed, position the mag to one side of it's adjustment, turn the engine over with the crank 2 revs until the TDC shows (make sure that TDC showing is truly TDC crank position). If the mag trips adjust the mag all the way to the other side. Turn the engine over again 2 revs until the TDC is showing again and the mag does not click. With the engine in this position, tap the mag the other way until the impulse trips. Then tighten the hold-down bolts. This guarantees that when you hand crank, the impulse will NOT fire before TDC and kick back. I love mags and if the lag angle is set correctly, the mag trips at low, hand-crank speed at TDC and then advances to full advance when the engine is running. The impulse not only creates spark at low speed by giving the mag rotor a quick flip but also delays the timing to prevent kick-back while cranking, very safe. Cool. Hint, do not "spin" a mag-fired engine with the hand crank as the impulse feature may be disabled by the rapid rotation and the mag will go to full advance and kick like a son of a gun. Very bad. I ALWAYS crank with my left hand, with thumb outside of the crank where the fingers curl from outside the crank under the crank handle, and only pull up for a half turn at a time. I never push down, spin over the top, or all the way around. A sound engine with a hot mag and a good carb will always start easily this way.
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