Re: old boat new to me
welcome to the forum.
1986? it's just barely broke in good!
you have one of the most reliable motors ever made there. check out the "awakening a sleeping outboard" thread in the Engine FAQ section of iboats.
at a minimum, rebuild the carbs & replace the water pump impeller, change the lower unit oil. at least a thousand if you take it to a shop...less than a hundred if you have basic tools and a good shop manual.
drain the fuel lines for sure, and the tank.
Premix 50:1 87-octane gasoline to tcw-3 certified oil until you know whether the VRO is pumping oil. champion QL77JC4 plugs gapped at .030