There are 3 loose wires 2 of which are grey and come together in the same eye type connector which I connected to the positive connection on the coil. Doing this gave me a stronger spark. I am not sure what all is involved with pre tripping the engine, but I did check the oil and topped off the gas.
Pre-tripping, should involve things like: 1. Checking the alternator belt for proper tension, fraying, cracks, etc. 2. Physically inspecting the engine for loose wires, frayed wires, etc. 3. Checking the oil (which you said you did). 4. checking Battery connection (are they tight, and secure?) 5. Making sure ALL safety gear is aboard (this involves checking your areas rules according to the size of the Boat) 6. Starting the Boat at the Dock, and letting it warm up, all the while checking for water leaks on and around the engine.
These things will usually always ensure a safe, and stress free day of boating without worrying about things.
Without sounding snarky, I suggest you do some research on your Boat to find out what engine and what Drive you have. There are many on here FAR more knowledgeable than I who can help you. They need certain information first.
Do yourself another favour, and buy a Seloc Manual for your Boat. I did, and have never regretted it. The Manual will tell you how to check certain Oilos, in your Drive, perhaps preventing more headaches that can be nipped in the bud as they say. Post us a picture in the Boat Photo Section. Mine is there.