the boat has been sitting for a while. To awake the outboard, should i spray some gasoline/2 stroke oil mixture into the cylinders first?
i know other items include; clean the plugs, use new fuel
Recapping what has been said and adding my 2c:
Check the fuel lines in the engine and replace if needed...cracks/leaking at connections...remove one and Q-Tip wipe the inside...if any black rubber specks replace all the fuel lines.....also the fuel line and bulb between engine and tank....and replace the fuel filter....surely it has one on the engine...been a long time since i saw a vintage OMC looper.
Then the impeller in the water pump needs replacing and the lower unit gear oil also. If anything but black, blue black, you have a seal leaking somewhere...drive shaft under the water pump, prop shaft at the propeller, service screw seals on the LU....vent and drain plugs.
New spark plugs and carb kits would also be a good idea. Lubricate the "Bendix" on the starter. Add a fresh battery. Fuel-oil ratio is 1 pint TC-W3 oil to min 87 octane 6 gallons of gas.....oil in the LU is 90w premium marine...Walmart has both is the sporting goods section.