Mercury 40hp 2 stroke 1980
Replaced starter and solenoid last weekend. Boat ran fine then let sit all week due to work took out started up no issues then died and now when trying to start it back up all I hear is the solenoid giving a single click. The battery are fully charged starter and solenoid are good. Has a full tank of fresh fuel new plugs and wires. What could possibly be the issue? New to boating and just trying to get some knowledge on simple boat mechanics.