Don't waste time trying to diagnose a problem until you have fresh gas. If you have ever read Zen and the Art of Motorcycle Maintenance
, you understand my approach to fixing engines: unexplainable.
Basically, you need fresh gas, air, and something to start a fire.
So buy some new gas, drain the carb bowl, drain the fuel line, and start a big bonfire. The next morning, close the carb drain screw, prime the carb and fuel line with new fuel, and turn her over. She should run fine now!
If you keep fresh fuel, oil
, lower unit lube, zincs, plugs, paint
, and a coat of fluid film on your outboard
, it should last near forever.