Re: Emergency tool kit advice
1. Spare Prop
2. Prop nut wrench
3.Spare set of plugs
4. Spark plug wrench
5. A multiple size screwdriver--combination flat and phillips with one side 1/4 socket and the other 5/16 socket.
6. Several sockets and open end wrenches sized to fit common fasteners. I don't know if Merc went metric in 98 so take either 3/8, 7/16, 1/2, or 10mm, 11mm, 13mm. Maybe a 9/16 or 14-15 MM if you think you may want to someday remove the lower unit away from home. As in changing the water pump impeller.
7. Extra fuel pump diaphragm and gaskets as needed.
8. Several pliers including electrical cutters and crimpers and an assortment of crimp terminals.
9. If you will be far from home, carry a spare water pump impeller. You will not be changing it on the water, but if you get to a marina or shore, then at least you have the part. If you change the impeller regularly, the spare SHOULD be redundant, but you can always count on Murphy rearing his ugly head.
10. A couple of lengths of wire for splicing and jumping purposes.
11. Common fuses used under the dash
If you come from my generation, always carry a woman with bobby pins in her hair. LOL
These tools and parts can fit into a small satchel or coffee can sized container with the obvious exception of the prop --and the woman.
You are obviously not going to do major repairs on the water so changing plugs, props, fuel pump diaphragm, and correcting minor electrical problems will be about it. You may need to adjust linkages and change a fuel fitting and filter or so. These common tools will cover almost anything short of a major repair.