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I have a boat motor with a lean and rich setting where do you set it to start and then keep running

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Turn it until it idles the best. Start at about one and a half turns out. Then while idling, adjust in or out until the engine runs the smoothest. This is best done when the engine is already warmed up.Lean means less gasoline in the gas/air mixture. Rich means more gas in the air/gas mixture. Basic carburetor theory.

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start the engine and turn the in and keep trying untill the engine runs when throttle is let go if nothing try turning it the other way

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