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I mistakenly put the gasoline i used for my weed wacker (Gas and oil) in my mower and it doesnt run very good now. Answered

I have changed the spark plug a couple times and it is pretty dirty with carbon. I even tried carbuerator cleaner . It has no gas filter

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As everyone else said, drain it, replace with fresh gas, and burn it off by running...a little oil won't kill the motor, unless you stubbornly ran thru a whole tank before writing your question. (and even then...)

You put 2-stroke pre-mix in a 4-stroke engine? Drain the tank, if practical remove the carb and empty the float-chamber. Clean the plug (or replace if that's easier?) Fill with fresh fuel and try it again. L

If its coked really badly, I'd take the head off and clean the piston crown and head. Steve

Sensible idea, but even taking the carb' off can be a bit of a task if you're not an engineer. L

It shouldn't permanently damage your engine. Just drain the tank, and change the filter as others said. It won't kill anything to put two stroke gas in a four stroke, but to put four stroke gas in a two stroke will really damage the engine.

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ve2vfd

9 years ago

You might even get away with simply draining the tank, putting fresh fuel in and starting up the mower... it'll huff, puff, smoke and clear up within a minute or two while it burns the mix-gas that made it to the carb. If that doesn't work, then as lemonie said you'll have to also drain and clean the carb and clean the sparkplug. Pat