I’m working on a Troy bilt weed eater tb575-ec four stroke with a no spark condition. The switch is good and not grounded. The coil from spark plug cap to ground on coil reads 2.2k ohms. I read it should be 2.5-5.0k ohms. Is mine bad or close enough? I cleaned the magnets on the flywheel and contacts on the coil and a new plug. Any idea where to go from here?