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1992 Fat Boy with original wiring harness. Tore motor down and put in Keith Black 10:1 pistons, DM cams, Heads done, Lifters, pushrods and added Dyna Dual fire ignition and coil to match. Fired up and ran strong on initial startup. Now it will not fire/start, only crank, no spark to plugs. New wires, plugs, have been over everything. Any ideas appreciated.
get out your tester.. check from the stater on back.. check the dual fire from up to the coils.. check the plug (that goes through the cases) from the stater. Are you getting fire to the coils, from the dual fire ? imho .. I'd dump the original harness. get some better wiring, and wire it up yoursel, getting rid of any unnecessary crap along the way .. jmho only though.. original harness?? check the kill switch too.
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