[KB in MD]

Did check them, and got to thinking, if that was an issue, I'd have issues starting as well.
Anyway, found the ground for the engine on the back left side, and the battery ground on the right side.
Both looked good, but lossened them and re-tightened, while I changed the spark plugs.

remove the paint under the ground to bare metal. Apply dielectric grease and re-secure the ground bolt.