When you get your new OEM coil, make sure to set the air gap between the legs of the coil and the magnets in the flywheel. As others have mentioned above, this can make the difference between a hot spark and a weak one.
When installing a coil, I loosen the mountings screws and slide the coil as far away from the flywheel as possible, then lightly snug the screws to hold the coil there. Now after rotating the flywheel until the magnet is directly under the coil, I place a standard thickness paper business card between the legs of the coil and the flywheel. Now loosen the screws and the magnets will pull the coil into place. Tighten the screws securely, and rotate the flywheel to remove the business card. Your air gap should be right around the .008" spec. The paper of a business card is right around .008 - .010" thick and is the perfect tool to quickly get the coil installed evenly and at the correct distance from the flywheel.
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149, 2072, Original, 1772, 1782, #1 cart, Parker 48" sweeper,
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