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mf 610 12hp engine/ no spark

bradford smith hi gang. i have a '67 massey ferguson 610 yard tractor w/ 12 hp tec. the key broke off and i forgot to disconnect +bat terminal before removing key switch. a couple wires shorted and after removing busted off key, and reinstalling, i am no longer getting spark to the plug.ran fine before. checked all wires for resistance. everything is good. its the old school solid state ignition. what would you guess i most likely fried? coil, points, regulator, generator, etc? coil can not be tested as i was told by small engine mech when he looked @ it. also what is the gap @ coil on one of these engines? thanks, bradford

Tom You state "solid-state" ign. and also "points". I don't think yours uses both. But I could be wrong. If points rule of thumb should be .012-.014". Solid state ign. Use a business card between the flywheel and coil pickup assy.

If you have a point set, you may have burnt them when you shorted the wires. They do make aftermarket solid state assy. to replace the point/condensor sets.

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