Hello all, I recently bought a used Mariner 30hp outboard motor. I had the local marina put it in on my pontoon and the motor was running fine when I picked it up. It sat for a few days and now it won't start. It's getting gas from the tank but it's not even firing like it's not receiving gas or a spark. I can't smell gas or see any gas in the water. According to the seller and Marina the motor was in good condition. I did use some gas from last year to drive it back to my dock. Could this have a cause the issue?