YES YES YES YES YES, burn it in the lawn mower, give it to the neighbors for there mower. and flush the fuel lines before pumping anything into the motor. there going to be all kind of crud and varnish and condensation. might consider changing any rubber hoses also.
I'd drain and refil the tank. Then drop the bowls on the carbs and using the squeeze bulb, force fuel through the engine (catching what comes out ) till fresh comes out the bowl (you can smell the difference). Then reinstall the bowls and put in a new fuel filter......and impeller in the lower unit.
Hypothetically speaking if you dont know that there was fuel in the tank and you add 20 gal (32gal tank) @ 50-1mix will this cause the motor to smoke
The motor was rebuilt 2 years ago then put into storage
I just did a Decarb with Sefoam
It Still smokes I did use fresh gas after I was finished doing the decarb
50-1 mix
Okay...I have done all of that, but my motor won't stay in run, it will start and after 5-10 seconds it shut off and it keep doing the samething everytime I try to start. Any advise...Thanks