Question about Craftsman 17.5 hp 42 in. Deck Lawn Tractor - CA Model

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Hello when mowing i have to run full throtle to get blades to spin fast enough to cutt good 24 hp 46 inch cutt

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You do not have a problem. Air cooled small engines are designed to be run at full throttle in order to mow correctly and to cool the engine properly. Running it as less than full throttle will cause the engine to overwork and possibly overheat thus shortening it's life. It will also not cut properly as you have found. The engine has a governor that prevents you from running it too fast. Run the engine at full throttle at all times when you are mowing which is the optimum speed for proper operation. You may think you are helping your engine by running it slower but in reality you are harming the engine. It is air cooled, not water cooled, and needs the revolutions in order to cool itself properly. Also use 100% synthetic oil in this air cooled engine for more protection. Change your oil/filter once a year or every 50 hours.

Posted on Apr 03, 2011

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